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.

The theoretical yield is, when % yield and actual yied are 55% and 24g respectively:
A 40g
B 43.6g
C 45g
D 41.4g
Correct Answer: 43.6g
The maximum amount of product obtained by balanced chemical equation is called as __________?
A Practical yield
B Theoretical yield
C Actual yield
D NOT
Correct Answer: Theoretical yield
The maximum mass is present in 1dm3 for the following gas at STP.
A C3H8
B CO2
C CO
D CS2
Correct Answer: CS2
24g of an unknown gas occupied 8.4dm3at STP, Identify the gas among the following
A SO3
B SO2
C C6H6
D C3H8
Correct Answer: SO2
Amino acids are a product of the digestion of: ___________?
A Carbohydrates
B Fats
C Proteins
D Vitamins
Correct Answer: Proteins
The process by which a substance absorbs moisture upon exposure to atmosphere is called?
A Efflorescence
B Dehydrogenation
C Desalination
D Deliquescence
Correct Answer: Deliquescence
Which of the following gases when passed through warm dilute solution of H2SO4 in presence of HgSO4 gives acetaldehyde
A CH4
B C2H6
C C2H4
D C2H2
Correct Answer: C2H2
In Aldehydes and Ketones, carbon of carbonyl group is ____________?
A sp3 hybridised
B sp2 hybridised
C sp hybridised
D Unhybridised
Correct Answer: sp2 hybridised
Fehling solution react with HCHO to form precipitate of _____________?
A White colour
B Yellow colour
C Red colour
D Blue colour
Correct Answer: Red colour
The typical reactions of aldehyde is _____________?
A Electrophilic addition
B Nucleophilic substitution
C Nucleophilic addition
D Nucleophilic elimination
Correct Answer: Nucleophilic addition