M C Q s D r i v e

Chemistry 1488 MCQs [All-Courses]

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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.

Which one of the following is not a good leaving group ?
A HSO4-
B Cl-
C OH-
D Br-
Correct Answer: OH-
When toluene reacts with chlorine in sunlight the first major product is__________________?
A Benzy1 chloride
B Benzal dichloride
C O-chlorotoluene
D O-chlorotoluene and P-chlorotoluene
Correct Answer: Benzy1 chloride
Vinyl acetylene combines with hydrochloric acid produces___________________?
A Diviny1 acetylene
B Ethylidine dichloride
C Chloroprene
D 1 – 3 – 3 – trichloro butane
Correct Answer: Chloroprene
A great variety of the organic compounds is due to its property of carbon_________________?
A Show tetravalency
B Exhibit catenation
C Show isomerism
D Can form multiple bonds
Correct Answer: Exhibit catenation
In the complex [Cr(OH)3(H2O)3] the coordination number is __________________?
A 2
B 3
C 4
D 6
Correct Answer: 6
When chlorine is passed through hot solution of caustic soda the reaction is said as___________________?
A Displacement
B Reduction
C Disproportionation reaction
D Double displacement reaction
Correct Answer: Disproportionation reaction
Chemical composition of cinnabar is____________________?
A FeS2
B HgS
C PbS
D ZnS
Correct Answer: HgS
Which one is not the use of silicones________________________?
A Lubricant
B Water repellent film
C Rubber sheet
D Medicine
Correct Answer: Medicine
Keeping in view the size of atom which is in correct order___________________?
A Mg > Sr
B Ba > Mg
C Lu > Ce
D CI > 1
Correct Answer: Ba > Mg
Nitrates of which pair gives different products on thermal decomposition___________________?
A Na K
B Mg Ca
C Li Na
D Li Ca
Correct Answer: Li Na