Chemistry GK · all questions

Chemistry in Everyday Life
practice.

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170

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Q121

Which one of the following statement is correct?

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Q122

Middle region of flame having the colour.

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Q123

Which of the following is used as a "morning after pill"?

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Q124

Gasohol is a mixture of

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Q125

The substances which vaporise during burning give

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Q126

Consider the following statements.
Sodium silicate and sodium sulphate are mixed as detergents in washing powders so that
1. to maintain dryness of the powder.
2. to maintain the basicity of powder.
Which of the following statements is correct?

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Q127

Which one of the following is not a natural fibre?

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Q128

Consider the following statements.
1. Fuels with low octane numbers are ideal for diesel engines.
2. Use of gasoline with low octane numbers may lead to the problem of engine knocking.
Which of the statement(s) given above is/are correct?

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Q129

Match the following List I with List II.

List-I	List-II
a. NO	1. Insecticide
b. PAN	2. Primary pollutant
c. BHC	3. Herbicide
d. NaClO₃	4. Secondary pollutant

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Q130

Soap helps in better cleaning of clothes because

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Q131

KMnO₄ can be used as alan

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Q132

CNG is

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Q133

PVC is obtained by the polymerisation of

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Q134

Which one of the following substances is most likely to be used as soap?

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Q135

Humus' is an example of

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Q136

Aspirin is obtained from

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Q137

The most suitable vessel for storing concentrated sulphuric acid is

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Q138

What is detergent?

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Q139

Which one among the following is not an example of ceramics?

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Q140

One property of ammonia is

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