NDA 2016 Paper 1 | Chemistry Question 43 | General Science

NDA 2016 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

The following question consist of two statements, Statement I and Statement II. You have to examine these two statements carefully and select the answers to the question using the codes given below.

Statements

I. Petroleum is a mixture of many different hydrocarbons of different densities.

II. The grade of petroleum depends mainly on the relative proportion of the different hydrocarbons.

Both the statements are individually true and Statement II is the correct explanation of Statement I

Both the statements are individually true, but Statement II is not the correct explanation of Statement I

Statement I is true, but Statement II is false

Statement I is false, but Statement II is true

NDA 2016 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

Density of water is

maximum at 0$$^\circ$$C

minimum at 0$$^\circ$$C

maximum at 4$$^\circ$$C

minimum at $$-$$4$$^\circ$$C

NDA 2016 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

The phosphorus used in the manufacture of safety matches is

red phosphorus

black phosphorus

white phosphorus

scarlet phosphorus

NDA 2016 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

Which one of the following is not a chemical change?

Ripening of fruits

Curdling of milk

Freezing of water

Digestion of food

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