10th Class Chemistry Chapter 10 MCQs with Answers

The following are 10th Class Chemistry Chapter 10 MCQs. We have collected these MCQs for online Test Preparation and academic as well as Competitive Exams all board exams in Pakistan, and CSS, PMS, college, and University Entrance tests, MDCAT tests, NTS tests, GAT, GRE, Entry Tests, etc. You can easily prepare yourself for any Test. These chemistry MCQs are also important for Teaching Jobs like SST, Subject Specialist, Lecturer, or Teaching Assistant. We have organized the 10th class chemistry chapter wise so you can find all the MCQs by clicking on the link of each chapter. 

10th Class Chemistry Chapter 10 MCQs with Answers

10th Class chemistry  MCQS Available Here. On these pages, you can get 10th Class chemistry MCQs with Answers.
You can read and practice, 10th Class Chemistry MCQs on Different topics, We make an Online question bank with the help of experienced teachers and subject specialists.

10th Class students of all educational boards can prepare for their exams online here on our site and by attempting these online MCQs they can make sure their preparation level for their annual exams is perfect. 10th Class Chemistry Chapters include Chapter 9 – Chemical Equilibrium, Chapter 10 – Acid, Base, and Salts, Chapter 11 – Organic Chemistry, Chapter 12 – Hydrocarbons, Chapter 13 – Biochemistry, Chapter 14 – The Atmosphere, Chapter 15 – Environmental Chemistry and Chapter 16 – Chemical Industries

What are ACIDS, BASES, AND SALTS?

An acid is defined as a substance whose water solution tastes sour, turns blue litmus red, and neutralizes bases. A substance is called base if its aqueous solution tastes bitter, turns red litmus blue, or neutralizes acids. Salt is a neutral substance whose aqueous solution does not affect litmus.

CHAPTER 10 ACIDS, BASES, AND SALTS

1 Nitric acid was prepared by

(a) Bu Ali Sina

(b) Jabir Bin Hayan

(c) Lavioser ,

(d) Humphrey

2 The first acid known to man was:

(a) hydrochloric acid

(b) sulphuric acid

(c) nitric acid

(d) acetic acid

3 The word acid is derived from

(a) acidic

(b) acidus

(c) acetic

(d) acetate.

4 Humphrey Davy proved the presence of as the main constituents of all acids

(a) nitrogen;

(b) oxygen

(c) hydrogen

(d) chlorine

5 Formula of phosphoric acid is:

(a) H2PO3

(b) H4PO3

(c) HPO4

(d) H3PO4

6. Al(OH)3 is:

(a) acid

(b) base

(c) salt

(d) non-metallic oxide

7. Which is amphoteric:

(a) HCS

(b) NH3

(c) NaOH

(d) H2O

8. The product of any Lewis acid base reaction is a single specie:

(a) salt

(b) adduct

(c) salt +H2O

(d) conjugate acid-base pair

9 In a reaction between ammonia & borontrifloride , BF3 is

(a) acid

(b) base

(c) conjugate base

(d) adduct

10. These can act as Lewis acids

(a) anions

(b) radicals

(c) cations

(d) molecule

11. Bronsted lowery acid

(a) gives H+

(b) electron pair acceptor

(c) donates OH

(d) donates H+

12.. All bronsted bases are

(a) arrhenius bases

(b) Lewis acids

(c) Lewis base

(d) bronsted acids

13. The final product of arrhenius concept is

(a) salt +H2O

(b) adduct

(c) conjugate acid base pair

(d) salt only

14. Neutralization is reaction of

(a) acid with metals

(b) acids with sulphides

(c) bases with acids

(d) none of them

15. Acid used for food preservation:

(a) nitric acid

(b) benzoic acid

(c) acetic acid

(d) Both b and c

16. Maleic acid is found from

(a) apples

(b) grapes

(c) sour milk

(d) fats

17. Acid reacts with metal sulphides to liberate

(a) hydrogen gas

(b) carbon dioxide

(c) ammonia gas

(d) hydrogen sulphide gas

18. It is used to treat bee’s sting

(a) Mg(OH)2

(b) Ca(OH)2

(c) NaOH

(d) KOH

19. It is found in stings of bees and ants:

(a) lactic acid

(b) Maleic acid .

(c) butyric acid

(d) formic acid

20 It is used to cure sting of wasps:

(a) acetic acid

(b) benzoic acid.

(c) nitric acid

(d) sulphuric acid

21 Bases react with acid to form:

(a) salt only

(b) salt & water

(c) water only ;

(d) None of them

22 Stomach acidity is also called :

(a) acidity

(b) heart burning

(c) hyperacidity .

(d) hypoacidity\

23 When acids react with carbonates and bicarbonates, which evolves out:

(a) H2S .

(b) CO3 .

(c) CO2

(d) CO

24 It is used in etching designs on copper plates:

(a) sulphuric acid

(b) acetic acid

(c) hydrochloric acid

(d) nitric acid

25 These can act as lewis bases

(a) cations

(b) anions

(c) cations & anions

(d) radicals

26 Uric acid is present in

(a) fats

(b) citrus fruits

(c) apples

(d) urine

27 In etching process, the glass or mirror is dipped into:

(a) hydrochloric acid

(b) sulphuric acid

(c) nitric acid

(d) hydrofluoric acid

28 Concentration of _ __ in pure water is the basis for pH scale

(a) hydrogen ion.

(b) sodium ion

(c) potassium ion

(d) hydroxide ion

29 Water is:

(a) weak electrolyte

(b) strong electrolyte

(c) non-electrolyte

(d) None of them

30 Water ionizes slightly into ions is a process called:

(a) neutralization

(b) auto ionization

(c) self ionization

(d) both b & c

31 “Kw” is k own as:

(a) equilibrium constant

(b) ionic product constant

(c) specific rate constant

(d) all of them

32 The negative logarithm of molar concentration of hydrogen ions is:

(a) POH

(b) p

(c) pH

(d) None of them

33 The range of pH scale is from:

(a) 10-14

(b) 1-14

(c) 0-14

(d) 14-0

34 The sum of pH scale and pOH is always :

(a) 14 at 26°C

(b) 14 at 25°C

(c) 13 at 25 °C

(d) 7 at 25 °C

35 A solution of a compound of pH 7 or pOH 7 is considered a:

(a) basic solution

(b) neutral solution

(c) acidic solution

(d) None of them

36 Solution of pH less than are acidic.

(a) 7

(b) 14

(c) 6

(d) 9

37 Solution of pH more than 7 are:

(a) acidic

(b) neutral

(c) basic

(d) All of them

38 pH =_

(a) -log[OH]

(b) – log [H]+

(c) log [H]+

(d) Both b&c

39 A solution of pH = 1 has times higher concentration of H* than a solution of pH = 2:

(a) 14 times

(b) 100 times .

(c) 10 times

(d) None of them

40 Low pH value means:

(a) strong acid

(b) weak acid

(c) strong basic

(d) All of them

41 pH of a neutral solution is always:

(a) 14

(b) 0

(c) 7

(d) None of them

42 High value of pH means:

(a) strong acid

(b) strong base

(c) Both a & b

(d) neutral

43 Indicators are:

(a) inorganic compounds.

(b) hydrocarbons

(c) organic compounds

(d) None of them

44 Indicators have_ colour in acidic or basic solution:

(a) same .

(b) different

(c) light

(d) normal

45 It is a common indicator.

(a) litmus

(b) pH meter

(c) pH scale

(d) both a & b

46 Litmus is _ in acidic solution:

(a) blue

(b) normal

(c) red

(d) orange

47 Litmus is |_in basic solution:

(a) red

(b) blue

(c) yellow

(d) orange

48 Phenolphthalein is _in acidic solution:

(a) red e.

(b) blue

(c) yellow

(d) colorless

49 Methyl orange is _ in alkaline solution :

(a) red

(b) blue

(C) yellow

(d) orange

50 At which pH methyl orange change color:

(a) 7

(b) 14

(c) 9

(d) 4

51 At which pH phenolphthalein change color:

(a) 7

(b) 4

(c) 9

(d) 0

52 pH meter consists of:

(a) pH electrode

(b) positive electrode

(c) negative electrode

(d) None of them

53 It is much more reliable and accurate method of measuring pH:

(a) universal indicator

(b) pH meter

(c) pH scale

(d) litmus

54 A solution HCl is 0.001 M. what is pH value?

(a) 3

(b) 12

(c) 2

(d) 14

55 What is pH value of 0.01 M solution of KOH?

(a) 14

(b) 13

(c) 11

(d) 3

56 What is pH value of 0.01 M sulphuric acid ?

(a) 7.1

(b) 1.7

(c) 1.0

(d) 0.3

57 Ionic product constant depends on :

(a) temperature .

(b) concentration

(c) both

(d) None

58 Salts are:

(a) organic compounds

(b) inorganic compounds

(c) ionic compounds

(d) None of them

59 A cation is derived from:

(a) acid

(b) base

(c) molecule

(d) compound

60 Metallic oxides are:

(a) bases

(b) acids

(c) salts

(d) organic compounds

61 A anion is derived from:

(a) acid

(b) base

(c) molecule

(d) all of them

62 When Na reacts with HCl the salt produced is:

(a) NaCl

(b) NaOH

(c) H2O

(d) NH3

63 Sodium carbonate, Sodium sulphate and sodium silicate are used to manufacture:

(a) paper

(b) detergents .

(c) glass

(d) cleaning agents

64 Heat resistance glass is:

(a) simple glass

(b) Pyrex

(c) both a and b

(d) None of them

65 Salts are found in:

(a) crystalline form

(b) amorphic form

(c) Both a & b.

(d) None

66 Salt have:

(a) high M.P and low B.P Tlm

(b) high M.P and B.P

(c) low M.P and low B.P

(d) low M.P and high B.P

67 Copper sulphate has water of crystallization:

(a) 5

(b) 2

(c) 6

(d) 24

68 Calcium sulphide has water of crystallization:

(a) 5

(b) 2

(c) 6

(d) 24

69 Salts may be:

(a) water soluble

(b) water insoluble

(c) both

(d) none

70 -_salts are often prepared in water:

(a) soluble

(b) insoluble

(c) both

(d) none

71 Reaction of acid and a metal is called reaction:

(a) partial displacement

(b) direct displacement

(c) incomplete displacement

(d) all of these

72 Mostly insoluble metallic oxides react with to form salt and water:

(a) dilute acids

(b) concentrated acids

(c) dilute bases

(d) None of them

73 In preparation of insoluble salts, _are mixed:

(a) insoluble salts

(b) soluble salts

(c) insoluble and soluble salts

(d) None

74 There are types of salts:

(a) 4

(b) 5

(c) 6

(d) 7

75 HCI + KOH →→KCI + H2O is an example of:

(a) neutral salt

(b) acidic salt

(c) basic salt

(d) complex salt

76 H3PO4 + NaOH NaH2PO4 + H2O is an example of :

(a) acidic salt

(b) basic salt

(c) double salt

(d) normal salt

77 Acidic salts turn __ litmus into red:

(a) blue .

(b) orange

(c) yellow

(d) green

78 FeSO4.(NH4)2 SO4.6H2O is:

(a) mohr’s salt

(b) potash alum

(c) ferric alum

(d) None

79 Double salts are formed by two:

(a) acidic salts

(b) neutral salts

(c) basic salts

(d) mixed salts

80 The formula of bleaching powder is:

(a) CacL

(b) Ca(OCI)CL

(c) CaCl2

(d) Ca(OCI)

81 Washing soda has water of crystallization:

(a) 24

(b) 6

(c) 5

(d) 10

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