M C Q s D r i v e
03079682698
mcqsdrive@gmail.com
About
Contact

Contact Info

03079682698

mcqsdrive@gmail.com

Ad Banner

Chemistry 1488 MCQs [All-Courses]

thumb

oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

All Topics  1488

How many isotopes have odd atomic number ?
A 154
B 280
C 86
D 300
Correct Answer: 86
The number of moles of CO2 which contains 16 g of oxygen is__________________?
A 0.25
B 0.5
C 0.75
D 1
Correct Answer: 0.5
The volume occupied by 2.8 g of N2 at STP______________________?
A 2.24 dm3
B 22.4 dm3
C 1.12 dm3
D 112 dm3
Correct Answer: 2.24 dm3
Which one of the following has the maximum number of isotopes ?
A oxygen
B carbon
C tin
D chlorine
Correct Answer: tin
moles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?
A 0.18 mole
B 0.27 mole
C 0.24 mole
D 0.09 mole
Correct Answer: 0.18 mole
Which of the following terms is not used for ionic compound ?
A formula unit
B empirical formula
C molecular formula
D formula mass
Correct Answer: molecular formula
The number of isotopes of elements with even mass number and even atomic number are ________________?
A 280
B 300
C 154
D 54
Correct Answer: 154
One mole of CO2 contains?
A 6.022 x 1023 atoms of oxygen
B 22-gram electrons
C 6.022 x 1023 atms of carbon
D both B. & C.
Correct Answer: both B. & C.
Which of the following statements about isotopes is correct ?
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
Correct Answer: Isotopes with even atomic number and even mass number are abundant
Molecular mass of water (18g) means__________________?
A 1-mole molecules of water
B 1-gram molecule of water
C 3-gram atoms
D all
Correct Answer: all
03079682698
mcqsdrive@gmail.com

Copyright @ 2026 MCQsDrive . All Rights Reserved.