Acids, Bases and Salts
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Q1: The most commonly used indicator in laboratory is
(a) Methyl Orange
(b) Litmus
(c) Phenolphtalein
(d) Universal Indicator
Q2: Which gas is released when a metal reacts with an acid?
(a) Cl2
(b) O2
(c) H2
(d) SO2
Q3: The strength of acid depends upon
(a) density of the acid
(b) oxygen atoms present
(c) number of hydrogen atoms present in the molecule
(d) concentration of H+ ions furnished by the acid
Q4: Which statement is incorrect?
(a) Acids have pH more than 7
(b) Acids give H+ ions in water
(c) Acid conduct electricity in aqueous solution
(d) Acids turn blue litmus red.
Q5: Which of the following substance is antacid?
(c) H2
(d) SO2
Q3: The strength of acid depends upon
(a) density of the acid
(b) oxygen atoms present
(c) number of hydrogen atoms present in the molecule
(d) concentration of H+ ions furnished by the acid
Q4: Which statement is incorrect?
(a) Acids have pH more than 7
(b) Acids give H+ ions in water
(c) Acid conduct electricity in aqueous solution
(d) Acids turn blue litmus red.
Q5: Which of the following substance is antacid?