RRB GROUP D Chemistry Quiz

Question 1:

Consider the following statements

If few amount of nail polish remover pour on your palm , it gains energy from your palm or surrounding and evaporates causing the palm to feel cool.
After a hot sunny day , people sprinkle water on the roof or in open ground because the large heat of vaporization of water helps to cool the hot surface .

Which of the following statement is incorrect ?

Both 1 and 2

Only 1

Only 2

Neither 1 nor 2

Question 2:

Which of the following statement is correct?

Acid rain damages agriculture, trees and plants.
Acid rain is due to presence of sulphur dioxide and carbon dioxide gas in air.
When pH of the rain is less than 6 then it is called acid rain.

1, 2 and 3

Both 1 and 2

Only 2

Only 3

Question 3:

Which of the following statement is incorrect about cement?

Raw materials used for the manufacture of clay are limestone and clay.

Excess of silica decrease the setting time of cement.

Alumina decreases the setting time of cement.

Clay provides silica oxide , alumina oxide and ferric oxide.

Question 4:

Which of the following elements do not come under the category of plants macronutrients?

Phosphorous

Manganese

Magnesium

Nitrogen

Question 5:

What is the chemical name of quartz crystals normally used in quartz clocks?

Silicon Dioxide

Germanium Oxide

A mixture of Germanium Oxide and Silicon dioxide

Sodium Silicate

RRB GROUP D Chemistry Quiz - 48

Question 1:

Question 2:

Question 3:

Question 4:

Question 5:

Time Left : 00:00:00

RRB GROUP D Chemistry Quiz - 48

Question 1:

Question 2:

Question 3:

Question 4:

Question 5:

Time Left : 00:00:00

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