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Chemistry Mcqs

Chemistry Mcqs for Test Preparation - PakMcqs.com

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.

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Mass spectrometer is used to determine Mass number of isotopes and___________________?
0

A. Atomic number
B. Relative abundance
C. Electronic configuration
D. All of the above

The number of peaks obtained in mass spectrometry shows____________________?
0

A. Relative abundance
B. Average mass of element
C. Number of isotopes
D. Relative isotopic mass

Empirical formula of chloroform is____________________?
4

A. CH2 C12
B. CH3C1
C. CC14
D. CHCL3
Read More Details about this Mcq

Molecular mass of water (18g) means__________________?
0

A. 1-mole molecules of water
B. 1-gram molecule of water
C. 3-gram atoms
D. all

Which of the following statements about isotopes is correct ?
0

A. Isotopes with odd atomic number are abundant
B. Isotopes with odd atomic number and even mass number are abundant
C. Isotopes with even atomic number and even mass number are abundant
D. Isotopes with even atomic number and odd mass no are abundant

One mole of CO2 contains?
1

A. 6.022 x 1023 atoms of oxygen
B. 22-gram electrons
C. 6.022 x 1023 atms of carbon
D. both B. & C.

The number of isotopes of elements with even mass number and even atomic number are ________________?
0

A. 280
B. 300
C. 154
D. 54

Which of the following terms is not used for ionic compound ?
0

A. formula unit
B. empirical formula
C. molecular formula
D. formula mass

moles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?
1

A. 0.18 mole
B. 0.27 mole
C. 0.24 mole
D. 0.09 mole

Which one of the following has the maximum number of isotopes ?
0

A. oxygen
B. carbon
C. tin
D. chlorine



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