Quiz 6- Chemistry-General Science: General Knowledge Question & Answers

51 Q) "Which one of the following is used as a mordant in dyeing and tanning industry? "

(a) Magnesium oxide

(b) Magnesium chloride

(c) Magnesium sulphate

(d) Magnesium carbonate

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C

52 Q) Which one of the following is the reason for keeping the chloroform in brown-tinted glass containers?

(a)Its brilliance colour hurts eyes

(b)Its deep red colour is piercing

(c)With UV-rays and 02, it forms poisonous gas phosgene

(d)With IR-rays, it forms a poisonous cyanide

Show Answer

C

53 Q) "Consider the following statements 

I.Acid rain is caused by emission of carbon dioxide, sulphur dioxide and nitrogen oxides. 

II.The most important gas which leads to acidification is sulphur dioxide. 

Which of the statements given above is/are correct?"

(a)Only I

(b)Only II

(c) Both I and II

(d) Neither I nor II

Show Answer

C

54 Q) "Consider the following statements 

I.All the enzymes found in the organisms are protein in nature. 

II.Enzymes do not need any cofactor to perform their functions. 

Which of the statements given above is/are correct?. "

(a) Only I

(b) Only II

(c) Both I and II

(d) Neither I nor II

Show Answer

A

55 Q) The flavour of apple is mainly due to which one of the following?

(a) Formalin

(b) Ethanol

(c) Benzene

(d)Benzaldehyde

Show Answer

B

56 Q) The ability of geckos which can hang on a glass surface using only one toe and to climb on sheer surfaces has been attributed to the

(a)hydrophobic interaction

(b)van der Waals’ force

(c)electrostatic interaction

(d)covalent bond

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B

57 Q) KO2 (Potassium superoxide) is used in oxygen cylinders in space and submarines because it

(a)eliminates moisture

(b)absorbs C02

(c) produces ozone

(d) produces C02

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B

58 Q) "Consider the following statements

I. Mustard gas are a class of related cytotoxic and vesicant chemical warfare agents with the ability to form large blisters on the exposed skin and in the lungs. 

II. Mustard gas is the organic sulphur compound. 

Which of the statements given above is/are correct?"

(a) Only I

(b) Only II

(c) Both I and II

(d) Neither I nor II

Show Answer

C

p 59 Q) Which one among the following is the chief compound used in Pepper spray, a riot control agent?

(a) Capsaicin

(b) Black pepper

(c)Sulphur dioxide

(d)Hydrogen sulphide

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A

60 Q) " Assertion (A) On mixing with water, plaster of Paris hardens. 

 Reason (R) By combining with water, plaster of Paris is converted into gypsum."

(a)Both A and R are true and R is the correct explanation of A

(b)Both A and R are true but R is not the correct explanation of A

(c)A is true but R is false

(d)A is false but R is true

Show Answer

A