RRB GROUP D Chemistry Quiz

Question 1:

Which of the following is the reason for the failure of one aspect of Dalton atomic theory ?

Discovery of nucleus

Discovery of electrons and protons

Discovery of atom

Discovery of orbits

Question 2:

Neutrons were discovered by

James Chadwick

Ernest Rutherford

J. J. Thomson

John Dalton

Question 3:

Which of the following processes define Reduction correctly?

Removal of hydrogen

Gain of electron

Addition of oxygen

Loss of electron

Question 4:

Use aspartame is limited to cold foods and soft drinks because

It has very low boiling point

It gets dissociated at cooking temperature

It is insoluble at high temperature

It is soluble at low temperature .

Question 5:

A shiny brown coloured element X on heating in air becomes black in colour. Here X is-

Copper

Silver

Aluminium

Mercury

Question 6:

Which one of the following fertilizers leaves maximum acidity in the soil?

Ammonium nitrate

Ammonium sulphate

Urea

Calcium ammonium nitrate

Question 7:

The example of oligosaccharide is

Sucrose

Glucose

Ribose

Cellulose

Question 8:

Which of the following part of the flame is yellow in colour ?

Outermost region

Inner most region

Middle region

Both 1 and 2

Question 9:

Which of the following is used as a moderator in a nuclear reactor?

Thorium

Graphite

Radium

Ordinary water

Question 10:

Which charcoal is used to decolorize raw sugar?

Sugar charcoal

Coconut charcoal

Wood charcoal

Animal charcoal

RRB GROUP D Chemistry Quiz - 17

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RRB GROUP D Chemistry Quiz - 17

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