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 element used for the formation of alloys is__________?
A Iron
B Calcium
C Mercury
D Chromium
Correct Answer: Chromium
O3 reacts with C2H4 to form ozonide, while on further hydrolysis it forms _________?
A Ethylene oxide
B HCHO
C Ethylene glycol
D Ethyl alcohol
Correct Answer: HCHO
Air is a/an _________?
A Compound
B Element
C Electrolyte
D Mixture
Correct Answer: Mixture
Position of double bond in an organic compound is determined by ___________?
A Ozonolysis
B Oxidation
C Reduction
D Hydrogenation
Correct Answer: Ozonolysis
Give Electronic configuration of Sodium:
A 1s2,2s2,2p6
B 1s2,2s2,2p6,3s2
C 1s2,2s2,2p6,3s1
D None of these
Correct Answer: 1s2,2s2,2p6
At higher temperature, Ethyne on reaction with water in the presence of HgSO4 and H2SO4 gives:
A Acetone
B Acetaldehyde
C Acetic acid
D Ethyl alcohol
Correct Answer: Acetaldehyde
For the generation of biogas, the materials commonly used are__________?
A Animal wastes
B Forest residues
C Aquatic plants
D None of these
Correct Answer: Animal wastes
Which of the following gases is used for welding?
A Methane
B Ethane
C Acetylene
D Ethene
Correct Answer: Acetylene
Which of the following is not the name of any scientist?
A Pauli exclusion principle
B Hund’s rule
C Aufbau’s principle
D Le-Chatelier’s principle
Correct Answer: Aufbau’s principle
The compound C3H4 has a triple bond, which is indicated by its reaction with____________?
A Bromine water
B Bayer’s reagent
C Fehling solution
D Ammonical silver nitrate
Correct Answer: Ammonical silver nitrate