Question

i.​Aluminium Hydroxide Al(OH)3 is a base. Which compound is formed by the reaction of this compound with Sulphuric Acid (H2SO4)?
​A.​Al(SO4)3​​​B.​Al2CO3
​C.​Al2(SO4)3​​​D.​AlCl3

ii.​Marble Buildings are disintegrated by acid rain because the acid attacks:
​A.​Calcium Sulphate​​B.​Calcium Nitrate
​C.​Calcium Carbonate ​​D.​Calcium Oxalate

iii.​Dipeptide is formed by the joining of two molecules of:
​A.​Amino acids​​​B.​Alcohols
​C.​Carboxylic acids​​D.​Amines

iv.​Naturally occurring metallic compounds are called:
​A.​Rocks​​​​B.​Minerals
​C.​Ore​​​​D.​Gangue

v.​The end product of oxidation of acetylene is:
​A.​Oxalic acid ​​​B.​Glycol
​C.​Glyoxal ​​​D.​Glycine

vi.​An unsaturated hydrocarbon reacts with one mole of hydrogen to form a saturated compound Predict its formula.
​A.​C3 H4​​​​B.​C6 H12
​C.​C4 H10​​​​D.​C7 H16

vii.​Which of the following is used to remove permanent hardness in water?
​A.​Slaked lime​​​B.​Washing soda
C.​Boiling water​​​D.​Baking soda

viii.​Which of the following compounds is an aldehyde?
​A.​CH3 - CH2 - OH ​​B.​CH3 - COOH​
​C.​CH3 - CHO​​​D.​CH3 - COCH3

Answer 1

Answer:

(i) C. Al2(SO4)3

(ii) C. calcium carbonate

(iii) A. Amino acids

(iv) B. Minerals

(v) A. Oxalic acid

(vi) D. C7 H16

(vii) A. slaked lime

(viii) C. CH3 - CHO

I hope it will help you

Answer 2

i. Aluminium Hydroxide Al(OH)3 is a base. Which compound is formed by the reaction of this compound with Sulphuric Acid (H2SO4)?

A. Al(SO4)3 B. Al2CO3

C. Al2(SO4)3 D. AlCl3

ii. Marble Buildings are disintegrated by acid rain because the acid attacks:

A. Calcium Sulphate B. Calcium Nitrate

C. Calcium Carbonate D. Calcium Oxalate

iii. Dipeptide is formed by the joining of two molecules of:

A. Amino acids B. Alcohols

C. Carboxylic acids D. Amines

iv. Naturally occurring metallic compounds are called:

A. Rocks B. Minerals

C. Ore D. Gangue

v. The end product of oxidation of acetylene is:

A. Oxalic acid B. Glycol

C. Glyoxal D. Glycine

vi. An unsaturated hydrocarbon reacts with one mole of hydrogen to form a saturated compound Predict its formula.

A. C3 H4 B. C6 H12

C. C4 H10 D. C7 H16

vii. Which of the following is used to remove permanent hardness in water?

A. Slaked lime B. Washing soda

C. Boiling water D. Baking soda

viii. Which of the following compounds is an aldehyde?

A. CH3 - CH2 - OH B. CH3 - COOH

C. CH3 - CHO D. CH3 - COCH3