Ethanol can be converted into ethanoic acid by_________________?
A. Hydrogenation
B. Oxidation
C. Hydration
D. Fermentation
Submitted by :- Jamil Ahmed
CHEMISTRY
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The nitrogen present in some fertilizers helps plants.
- to fight against diseases
- to produce protein
- to undergo photosynthesis
- to produce fat
Submitted by :- Muhammad Nawaz
Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is_________________?
A. oxidation
B. elimination
C. condensation polymerization
D. additional polymerization
Submitted by :- Jamil Ahmed
What is the percentage of nitrogen in urea?
- 46%
- 77%
- 88%
- 23%
Submitted by :- Muhammad Nawaz
Heating phenol with Zn will yield_________________?
A. Benzene
B. Benzoic acid
C. Phenoxide
D. Cyclohexane
Submitted by :- Jamil Ahmed
Which is ideal for horticultural crops and for tobacco and potatoes.
- Potassium Nitrate
- Potassium chloride
- Potassium sulphate
- None of these
Submitted by :- Muhammad Nawaz
Which compound is also known by the name of carbolic acid ?
What is the percentage of nitrogen in ammonium sulphate?
- 21
- 27
- 23
- 19
Submitted by :- Muhammad Nawaz
Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate ?
A. Primary alcohol
B. Secondary alcohol
C. Tertiary alcohol
D. All of above
Submitted by :- Jamil Ahmed
What is the percentage of nitrogen in ammonium nitrate?
- 80-82
- 50-55
- 20-25
- 32-35
Submitted by :- Muhammad Nawaz