Chemistry GK · all questions

Non Metal and Its Compounds
practice.

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Q141

Which one of the following is the permanent gas in the atmosphere?

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Q142

The electronic configuration of hydrogen is similar to which of the following?

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Q143

Which gas is produced when a metal reacts with water?

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Q144

Which of the following is used to disinfect drinking water?

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Q145

Which of the following Allotropes of carbon is used to absorb impurities and bad odors from water and other substances?

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Q146

What is the atomicity of sulphur?

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Q147

Pure water can be obtained from sea water by

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Q148

How many oxygen atoms are in a molecule of oxygen?

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Q149

Red phosphorus is used in the manufacture of safety matches. This is due to the fact that

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Q150

The elements of group 18 are . . . . . . . .

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Q151

Which of the following is a non-metal?

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Q152

The boiling point of liquid nitrogen is:

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Q153

. . . . . . . . is not a Allotropes of carbon.

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Q154

The molecular mass of O₂ is . . . . . . . .

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Q155

Which of the following is not an halogen?

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Q156

. . . . . . . . extinguishes the fire?

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Q157

Match List I with List II.

List-I	List-II
a. Hydrogen was discovered by	1. Priestley
b. The name hydrogen was proposed by	2. Bernard
c. Hydrogen peroxide was discovered by	3. Lavosier
d. Oxygen was discovered by	4. Cavendish

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Q158

Which of the following gases is a noble gas?

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Q159

The oxygen molecule contains . . . . . . . .

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Q160

Which among the following is an element?

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