Chemistry MCQS

Chemistry Mcqs for Test Preparation from Basic to Advance. Chemistry Mcqs are from the different sections of Chemistry Subject. Here you will find Mcqs of Chemistry from Basic to Advance. Which will help you to get higher marks in Chemistry portion of test. These Mcqs are useful for students and job seekers i.e MCAT ECAT ETEA test preparation, PPSC Test, FPSC Test, SPSC Test, KPPSC Test,BPSC Test, PTS ,OTS,GTS,JTS,CTS.

1 a.m.u =__________________?

A. 1.6 x 10-27 kg
B. 1.6 x 10-24 kg
C. 1.6 x 10-26 kg
D. 1.6 x 10-28 kg

Which of the following are isoelectronic species ?

A. H+ H H-
B. Li+ Na+ K+
C. C1- Br- I
D. F- Ne Na+

Molecular ions are formed by passing______________________?

A. High energy electron beam
B. ? – particle
C. X-rays
D. All of the above

Which one is true about isotope ?

A. Same number of neutrons
B. Same mass number
C. Same physical properties
D. Same chemical properties

Which of the following ion formation is always exothermic ?

A. Uni-negative
B. Uni-positive
C. Di-negative
D. Di-positive

The sample of isotopes of an element which needs not to be vaporized in the vaporization chamer_________________?

A. Gas
B. Liquid
C. Volatile solid
D. All

Avogadros number may represent_________________?

A. volume of particles
B. number of particles
C. mass of particles
D. All of the above

Size of molecule depends upon________________?

A. Atomicity
B. Shape of molecule
C. Both A and B
D. Difficult to predict

Which of the following terms is used for the mass of chlorine 35.5 ?

A. relative atomic mass
B. mass number
C. atomic weight
D. relative isotopic mass

Which one of the following is not the mono isotopic element ?

A. arsenic
B. uranium
C. iodine
D. nickel

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