Quiz 17- Chemistry-General Science: General Knowledge Question & Answers

161 Q) Vinegar is used as a condiment, and in the pickling of vegetables and other foods. What is the constituent of vinegar?

(a)Butanoic acid

(b) Methanoic acid

(c) Ethanoic acid

(d) Hexanoic acid

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C

162 Q) Which one of the following is used to measure the combustion quality of diesel fuel during compression ignition?

(a)Octane number

(b) Cetane number

(c) Iodine number

(d) Polenske number

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B

163 Q) "Consider the following statements 

I.Sodium thiosulphate is used in both film and photographic paper processing. 

II.Sodium thiosulphate is used as an antidote to cyanide poisoning. 

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

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C

164 Q) "Assertion (A) Potassium ion is an essential nutrients for plants. 

Reason (R) The usual form of potassium fertilizers is KCI. "

(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

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B

165 Q) " Assertion (A) The nuclear fusion reaction releases less energy than the fission reaction. 

Reason (R) The nuclear fusion reaction takes place in the sun and other stars."

(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

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D

166 Q) One of the occupational health hazards commonly faced by the workers of ceramic, pottery or glass industries is

(a) stone formation in gall bladder

(b) melanoma

(c) stone formation in kidney

(d) silicosis

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D

167 Q) Which one of the following glasses form the basis of re writable CD and DVD solid-state memory technology?

(a) Recycled glass

(b)Borosilicate glasses

(c) Chalcogenide glasses

(d) Pyrex glasses

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C

168 Q) What is the purpose of adding baking soda to dough?.

(a)To generate moisture

(b)To give a good flavour

(c)To give a good colour

(d)To generate carbon dioxide

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D

169 Q) "Consider the following statements 

I. Crude oil is separated into fractions by steam distillation.

II. The fractions at the top of the fractionating column have lower boiling points than the fractions at the bottom. 

III. Lubricating oils, Paraffin wax, Asphalt and tar are boiled at around 400° C. 

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

(a) I, II and III

(b) I and III

(c) II and III

(d) Only III

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C

170 Q) "Liquid sodium is used for the heat transfer medium in some of nuclear reactor because "

(a)sodium has high rate of vapourisation

(b)sodium has low density and high viscosity

(c)sodium has high specific heat than the most liquid metals

(d)All of the above

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C