Question

Revision 2
Topic: Acid, bases and Salts
Multiple Choice questions
Question 1: When a solution of an acid contains larger amount of acid, it is said to be-
(a) Dilute (b) concentrated
(c) Monobasic (d) polybasic
Question 2: Metals like sodium, potassium and calcium react with an acid to liberate-
(a) CO2 (b) NH3 (c)O2 (d)H2
Question 3: Which of the following is a weak acid?
(a) sulphuric acid (b) hydrochloric acid
(c) acetic acid (d) nitric acid
Question 4: The chemical formula of baking soda is
(a)Na2Co3 (b) Na2Co3.10H2O
(c) NaHCO3 (d) NaOH
Question 5: Which of the following phenomena occur, when a small amount of acid is added to water?
(a) ionization (b) Neutralization
(c) Dilution ( d) Salt formation
Question 6:Salt form during reaction of sulphuric acid with copper
(a)Na2SO4 (b) CuSO4 (c) K2SO4 (d) NH4CI
Question 7 : CuSO4. K2SO4   is
(a)acid salt (b) a mixed salt
(c) normal salt (d) double salt
Question 8: The acid present in vinegar
(a)citric acid (b) tartaric acid
(c) ascorbic acid (d) acetic acid
Question 9: Acid reacts with---------- of metals to form salt and water.
(a)hydroxide (b) carbonates
(c) oxides (d) sulphides
Question 10: Which of these bases is not an alkali?
(a)NaOH (b) NH4OH
(c) AI (OH)3 (d) all of the are alkalies
Question 11:Which substance is used to purify water
(a)Ammonium chloride (b) copper sulphate
(c) chlorine (d) none of these
Question 12: H3PO4 is the example of-
(a)hydracids (b) organic acid
(c) oxyacid (d) salt
Question 13: To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is
(a) acidic (b) neutral
(c) basic (d) corrosive
Question 14: Which of the following substance will not give carbon dioxide on treatment with dilute acid?
(a)Marble
(b)Limestone
(c) Baking soda
(d)Lime
Question 15: A compound that reacts with an acid to form a salt and water is called
(a)base
(b) alkali
(c) solution
(d) none of these
Question 16: An indicator is what type of compound?
(a) reducing agent
(b) strong base or acid
(c) weak base or acid
(d) salt
Question 17: H2SO4 can be prepared by reaction of water with-
(a)NO2
(b) SO2
(c) N2O
(d) SO3
Question 18: The acidity of Fe(OH)3 is
(a)2 (b) 3 (c) 4 (d) 5
Question 19:The example of olfactory indicators is
(a) Methyl orange
(b) onion
(c) blue litmus
(d) phenolphthalein
Question 20 :The aqueous solution of sodium acetate is
(a)basic
(b) neutral
(c) acidic
(d) none of these​

Answer 1

can u send 1 or two questions plz

sorry I can't

if u send I can

thanku

and once again sorry