The gas used in manufacturing of urea fertilizer__________________?
A. C2H6
B. C2H4
C. C2H2
D. CH4
Submitted by :- Jamil Ahmed
CHEMISTRY
Prepare for your upcoming test with a comprehensive collection of Chemistry multiple-choice questions (MCQs), ranging from basic to advanced topics. These Chemistry MCQs cover various sections of the subject, providing you with valuable practice and boosting your chances of scoring well in the Chemistry portion of the test. Whether you’re a student or a job seeker preparing for exams, these MCQs will prove beneficial for your test preparation.
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Introduction of nitro group in a molecule is called___________________?
Which of the following is the most reactive_________________?
A. ethane
B. ethyne
C. ethene
D. benzene
Submitted by :- Jamil Ahmed
R-Mg-Br is called___________________?
A. Grignard reagent
B. Metallic alkyl halide
C. Both A & B
D. Alkyl
Submitted by :- Jamil Ahmed
General formula of alkyne is______________?
A. CnH2n + 2
B. CnH2n – 2
C. CnH2n
D. CnH2n + 2
Submitted by :- Jamil Ahmed
Order of ease of halogenation in alkane is________________?
A. I2>Cl2>Br2>F2
B. F2>Cl2>I2>Br2
C. F2>Cl2>Br2>I2
D. Cl2>F2>Br2>I2
Submitted by :- Jamil Ahmed
Which free radicals is existing in the atmosphere?
- CH3
- HOO
- CH3COO
- HCO
Submitted by :- Muhammad Nawaz
Which of the following is the residue which is formed on combustion of fuel in power plants?
- Dust
- Soot
- Smoke
- Activated carbon
Submitted by :- Muhammad Nawaz
Which is/are related to effects of photochemical smog?
- Birth defects
- Aggravation of asthma
- Coughing and irritation of eyes
- All of these
Submitted by :- Muhammad Nawaz
Photochemical smog consists of excessive amount of X in addition to aldehydes. Ketones. PAN Etc. X is
- Methane
- Carbon monoxide
- Ozone
- Carbon dioxide
Submitted by :- Muhammad Nawaz