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What is the chemical name of saltpeter, which is used in the preparation of gunpowder also?

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Important Questions on General Science

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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 156

Which is the correct sequence for treatment of polluted surface water?

1. Disinfection and fluoridation

2. Screening and mixing

3. Flocculation and sedimentation

4. Filtration and sludge processing

Select the correct answer using the codes given below.

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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 157
Which one among the following is not a greenhouse gas?
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 159
Which one of the following statements regarding baking powder is not correct?
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 160
Which one of the following artificial sweeteners is modified sugar?
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 161
Which one of the following is used in preparing match sticks?
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 162
Natural gas is a mixture of gases and contains mainly:
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 163
Arrange the following fuels in the decreasing order of air pollution caused by burning a kilogram of each of them?
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 164
The three primary soil micro-nutrients are: