Dinesh Singh
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this online test contains 10 question based on SSC Exam.

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Dinesh Singh
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Chemistry OT-1

Chemistry OT-1

Question 1 of 10

1

The chemical used as a ‘fixer’ in photography

Select one of the following:

  • Sodium sulphate

  • Sodium thiosulphate

  • Ammonium sulphate

  • Borax

Explanation

Question 2 of 10

1

Which of the following is the correct sequence of the wavelength of radiation

Select one of the following:

  • UV > Green > IR > Hard X-rays

  • IR > Green > UV > Hard X-rays

  • UV > Hard X-rays > IR > Green

  • IR > Hard X-ray > Green > UV

Explanation

Question 3 of 10

1

Which of the following fertilizer has the maximum % of nitrogen

Select one of the following:

  • Ammonium sulphate

  • Urea

  • Calcium cyanamide

  • Calcium ammonium nitrate

Explanation

Question 4 of 10

1

Which of the following is not contains in Portland cement

Select one of the following:

  • Ca3Al2O6

  • Ca3SiO5

  • Ca2Sio4

  • Ca3(PO4)2

Explanation

Question 5 of 10

1

Which one of the following acid is used for etching glass

Select one of the following:

  • H2SO4

  • HNO3

  • HF

  • HCl

Explanation

Question 6 of 10

1

Nuclear fusion requires very temperatures so as to overcome

Select one of the following:

  • Van der waal’s forces

  • Nuclear force

  • Gravitational force

  • Coulomb force

Explanation

Question 7 of 10

1

What is the colour of oxygen in solid state

Select one of the following:

  • Pale yellow

  • Pale blue

  • Light green

  • Greenish yellow

Explanation

Question 8 of 10

1

In surgery, metal pins are used for joining together broken bones. the metal pins remains uncorroded in the body. What is the material of the pins

Select one of the following:

  • Copper

  • Iron

  • Aluminium

  • Titanium

Explanation

Question 9 of 10

1

H2o is liquid and H2S is a gas because

Select one of the following:

  • Oxygen forms stronger hydrogen bond than sulphur

  • Oxygen is less electronegative than sulphur

  • Atomic radius of oxygen is less than that of sulphur

  • Atomic radius of oxygen is greater than that of sulphur

Explanation

Question 10 of 10

1

In chemical terms, what are the alums used for purifying water for drinking purpose

Select one of the following:

  • Hydrated chlorides

  • Double nitrate

  • Double sulphate

  • Nitrates of aluminium

Explanation

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