Basic Chemistry Mcqs with Answers

Our collections of Multiple choice questions and answers focuses on study of Basics of Chemistry. These questions are chosen from a collection of most authoritative and best reference books on Chemistry. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams and tests and Chemical industry job interviews. One should practice our Mcqs to assimilate Basic Chemistry Topics comprehensively.

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Computer MCQS

Sciences MCQS

32.
Which of the following methods is used to estimate hydrogen in an organic compound?

Combustion method

Dumas method

Kjeldahls method

All of the above methods are for different purposes

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33.
Isotopes of the same elements has

Different number of protons

Same number of neutrons

Different number of neutrons

Same mass number (nucleon number)

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34.
The nucleus of an atom of every element will always contain

Neutrons

Protons and electrons

Protons

Protons and neutrons

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35.
When cationic molecular ions are allowed to pass through strong magnetic field in mass spectrometer which of the following ions is fallen

Lighter

Intermediate

Heavier

Are collected at same time

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36.
When 0.5 mole of phosphoric acid is dissolved in aqueous solution how many moles of -ve and +ve ions are collected altogether?

0.5

1

1.5

2

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37.
For which of the following compounds the term empirical formula cannot be applied?

NaCl

H2O

CCI4

It can be applied to all mentioned above

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39.
The properties of an element mosly corresponds to that isotope which has greater

Mass number

Atomic mass

Relative abundance

All of the above

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Engineering MCQS

General Subjects MCQS

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