Chemistry in Everyday Life MCQ question and answer with solution

1

The most suitable crop for green manuring is

A) potato B) sugarcane C) sunhemp D) gram

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Answer & Solution

Answer: Option C

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2

The advantage of detergents over soaps is

A) detergents are soluble in water B) detergents could not givemuch lather C) detergents give lather even with hard water D) soaps give lather with only soft water

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Answer & Solution

Answer: Option C

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3

Consider the following features of newer models of motor cars.
1. Radial tyres
2. Streamlined body
3. Multipoint fuel injection
4. Catalytic converter with exhaust
Which of these features make the new models of motor cars more fuel efficient?

A) 1 and 2 B) 2 and 3 C) 2, 3 and 4 D) 1, 3 and 4

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Answer & Solution

Answer: Option D

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4

Bakelite is a co-polymer of phenol and

A) formaldehyde B) acetaldehyde C) benzaldehyde D) cinnamaldehyde

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Answer & Solution

Answer: Option A

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5

A powerful eye irritant present smog is

A) nitric oxide B) sulphur dioxide C) peroxyacetyl nitrate D) carbon dioxide

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Answer & Solution

Answer: Option C

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6

Which one of the following statements about glass is not correct?

A) Glass is often said to be a supercooled liquid B) Glass has no definite melting point C) Soda glass is harder than pyrex glass D) Boron is present in pyrex glass

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Answer & Solution

Answer: Option C

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7

Which of the following statements is not true for soap?

A) Soaps are bio-degradable B) Soaps cannot be used in acidic medium C) Soaps form a white curdy precipitate with hard water D) Soaps are relatively stronger in their cleaning action than synthetic detergents

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Answer & Solution

Answer: Option D

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8

Soap, removes grease by

A) coagulation B) absorption C) emulsification D) osmosis

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Answer & Solution

Answer: Option C

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9

Hydrogen gas can be conveniently used as a fuel for running vehicles if it is absorbed at very low temperature by a substance only to be released at the temperature generated by the exhaust. What is that substance found in India?

A) Hydride B) Coals C) Soapstone D) Resins

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Answer & Solution

Answer: Option A

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10

Which of the following is not the main nitrogenous waste in humans?

A) Ammonia B) Urea C) Uric acid D) Ammonium nitrate

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Answer & Solution

Answer: Option D

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Chemistry in Everyday Life MCQ question and answer with solution | Chemistry Gk MCQs