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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.

All Topics  1488

Octane rating of Gasoline can be increased by __________?
A Refining
B Cracking
C Reforming
D None of These
Correct Answer: Reforming
A process in which large molecules are broken up into into smaller molecules is called as_____.
A Reforming
B Cracking
C Refining
D Isomerization
Correct Answer: Cracking
The quality of petrol is improved by ____________?
A Cracking
B Reforming
C Refining
D Hydration
Correct Answer: Reforming
Aldehydes and ketones both, show the type of Isomerism is __________?
A chain Isomerism
B Functional Group Isomerism
C Metamerism
D Position Isomerism
Correct Answer: Functional Group Isomerism
diamond got brilliance due to following reason?
A reflection
B refraction
C dispersion
D all  of the above
Correct Answer: all  of the above
Universe is almost 70% made up of __________?
A Helium
B Hydrogen
C Chlorine
D Carbon
Correct Answer: Hydrogen
Which of the following is more Basic in nature?
A Ammonia
B 1°Alkyl ammine
C 2° Alkyl ammine
D 3° Alkyl ammine
Correct Answer: 3° Alkyl ammine
Which of the following is more acidic in nature?
A Benzene
B Phenol
C p-nitrobenzene
D Cresol
Correct Answer: p-nitrobenzene
Which of the following is more acidic in nature?
A Benzene
B Phenol
C Cresol
D Aniline
Correct Answer: Phenol
The following alcohol does not undergo oxidation is _____________?
A 1° alcohol
B 2° alcohol
C 3° alcohol
D 0° alcohol
Correct Answer: 3° alcohol
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