2. ACIDS, BASES AND SALTS-A&R’S-1

Assertion: The metal displaces hydrogen atoms from acids. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion. Assertion: The metal displaces hydrogen atoms from acids. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: It is false that the laboratory bases listed include NaOH, Ca(OH)2, KOH, Mg(OH)2 and NH4OH.. Reason: The laboratory bases listed include NaOH, Ca(OH)2, KOH, Mg(OH)2 and NH4OH. Assertion: It is false that the laboratory bases listed include NaOH, Ca(OH)2, KOH, Mg(OH)2 and NH4OH.. Reason: The laboratory bases listed include NaOH, Ca(OH)2, KOH, Mg(OH)2 and NH4OH.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: The laboratory bases listed include NaOH, Ca(OH)2, KOH, Mg(OH)2 and NH4OH. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion. Assertion: The laboratory bases listed include NaOH, Ca(OH)2, KOH, Mg(OH)2 and NH4OH. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: The laboratory bases listed include NaOH, Ca(OH)2, KOH, Mg(OH)2 and NH4OH. Reason: Plaster of Paris becomes gypsum by losing water to the atmosphere. Assertion: The laboratory bases listed include NaOH, Ca(OH)2, KOH, Mg(OH)2 and NH4OH. Reason: Plaster of Paris becomes gypsum by losing water to the atmosphere.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Acid plus metal gives salt and hydrogen gas. Reason: Magnesium hydroxide is a strong acid used to treat indigestion. Assertion: Acid plus metal gives salt and hydrogen gas. Reason: Magnesium hydroxide is a strong acid used to treat indigestion.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Hydrogen burns when a burning candle is brought near a gas-filled soap bubble. Reason: Excessive local heating can break the glass container. Assertion: Hydrogen burns when a burning candle is brought near a gas-filled soap bubble. Reason: Excessive local heating can break the glass container.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Onion, vanilla and clove are used as olfactory indicators in the activities. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion. Assertion: Onion, vanilla and clove are used as olfactory indicators in the activities. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Hydrogen burns when a burning candle is brought near a gas-filled soap bubble. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion. Assertion: Hydrogen burns when a burning candle is brought near a gas-filled soap bubble. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Acids are sour in taste and change blue litmus to red. Reason: HCl + H2O → H3O+ + Cl−. Assertion: Acids are sour in taste and change blue litmus to red. Reason: HCl + H2O → H3O+ + Cl−.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Acid plus metal gives salt and hydrogen gas. Reason: Neutralisation can be written Acid + Base → Salt + Water. Assertion: Acid plus metal gives salt and hydrogen gas. Reason: Neutralisation can be written Acid + Base → Salt + Water.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Litmus is a natural indicator extracted from lichen. Reason: NaOH in water gives Na+ and OH−. Assertion: Litmus is a natural indicator extracted from lichen. Reason: NaOH in water gives Na+ and OH−.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: It is false that litmus is a natural indicator extracted from lichen.. Reason: Litmus is a natural indicator extracted from lichen. Assertion: It is false that litmus is a natural indicator extracted from lichen.. Reason: Litmus is a natural indicator extracted from lichen.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: The laboratory acids listed include HCl, H2SO4, HNO3 and CH3COOH. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion. Assertion: The laboratory acids listed include HCl, H2SO4, HNO3 and CH3COOH. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: The laboratory acids listed include HCl, H2SO4, HNO3 and CH3COOH. Reason: H+(aq) + OH−(aq) → H2O. Assertion: The laboratory acids listed include HCl, H2SO4, HNO3 and CH3COOH. Reason: H+(aq) + OH−(aq) → H2O.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Litmus is a natural indicator extracted from lichen. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion. Assertion: Litmus is a natural indicator extracted from lichen. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: It is false that the laboratory acids listed include HCl, H2SO4, HNO3 and CH3COOH.. Reason: The laboratory acids listed include HCl, H2SO4, HNO3 and CH3COOH. Assertion: It is false that the laboratory acids listed include HCl, H2SO4, HNO3 and CH3COOH.. Reason: The laboratory acids listed include HCl, H2SO4, HNO3 and CH3COOH.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: The metal displaces hydrogen atoms from acids. Reason: Dilution decreases concentration of H3O+/OH− ions per unit volume. Assertion: The metal displaces hydrogen atoms from acids. Reason: Dilution decreases concentration of H3O+/OH− ions per unit volume.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Methyl orange and phenolphthalein are synthetic indicators. Reason: Phenolphthalein and methyl orange are natural indicators extracted from lichen. Assertion: Methyl orange and phenolphthalein are synthetic indicators. Reason: Phenolphthalein and methyl orange are natural indicators extracted from lichen.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Methyl orange and phenolphthalein are synthetic indicators. Reason: KOH in water gives K+ and OH−. Assertion: Methyl orange and phenolphthalein are synthetic indicators. Reason: KOH in water gives K+ and OH−.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: It is false that acid plus metal gives salt and hydrogen gas.. Reason: Acid plus metal gives salt and hydrogen gas. Assertion: It is false that acid plus metal gives salt and hydrogen gas.. Reason: Acid plus metal gives salt and hydrogen gas.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Acids are sour in taste and change blue litmus to red. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion. Assertion: Acids are sour in taste and change blue litmus to red. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Onion, vanilla and clove are used as olfactory indicators in the activities. Reason: Baking soda is chemically sodium chloride. Assertion: Onion, vanilla and clove are used as olfactory indicators in the activities. Reason: Baking soda is chemically sodium chloride.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Acids are sour in taste and change blue litmus to red. Reason: The cathode in brine electrolysis releases chlorine gas. Assertion: Acids are sour in taste and change blue litmus to red. Reason: The cathode in brine electrolysis releases chlorine gas.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Hydrogen burns when a burning candle is brought near a gas-filled soap bubble. Reason: The substance is identified as a strong base in the chapter. Assertion: Hydrogen burns when a burning candle is brought near a gas-filled soap bubble. Reason: The substance is identified as a strong base in the chapter.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Onion, vanilla and clove are used as olfactory indicators in the activities. Reason: All bases do not dissolve in water. Assertion: Onion, vanilla and clove are used as olfactory indicators in the activities. Reason: All bases do not dissolve in water.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Neutral litmus solution is purple. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion. Assertion: Neutral litmus solution is purple. Reason: The chapter directly links the stated observation or property to the fact given in the Assertion.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: It is false that the metal displaces hydrogen atoms from acids.. Reason: The metal displaces hydrogen atoms from acids. Assertion: It is false that the metal displaces hydrogen atoms from acids.. Reason: The metal displaces hydrogen atoms from acids.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: It is false that neutral litmus solution is purple.. Reason: Neutral litmus solution is purple. Assertion: It is false that neutral litmus solution is purple.. Reason: Neutral litmus solution is purple.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: Neutral litmus solution is purple. Reason: Acids show their acidic character in dry form without water. Assertion: Neutral litmus solution is purple. Reason: Acids show their acidic character in dry form without water.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

Assertion: It is false that methyl orange and phenolphthalein are synthetic indicators.. Reason: Methyl orange and phenolphthalein are synthetic indicators. Assertion: It is false that methyl orange and phenolphthalein are synthetic indicators.. Reason: Methyl orange and phenolphthalein are synthetic indicators.

1 Mark(s)

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false. Assertion is true, but Reason is false.
Assertion is false, but Reason is true. Assertion is false, but Reason is true.

2. ACIDS, BASES AND SALTS-A&R’S-1 : Question 1 of 30