A. Water
B. Formic acid
C. Acetic acid
D. Propanoic acid
✅ The correct answer is option B.
Chemistry
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2. The mass of one mole of an electron is
A. 1.008
B. 0.55
C. 0.184
D. 1.637
✅ The correct answer is option B.
3. Main source of organic compounds is
A. Animal
B. Fossil
C. Coal
D. Plants
✅ The correct answer is option A.
4. Which acid is the manufacture of synthetic rubber?
A. Acetic acid
B. Formic acid
C. Carbonic acid
D. Benzoic acid
✅ The correct answer is option A.
5. The volume occupied by 1.4g CO at S.T.P is
A. 22.4 dm3
B. 2.24 dm3
C. 1.12 cm3
D. 1.12 dm3
✅ The correct answer is option D.
6. Octane number can be improved by
A. Isomerization
B. Adding (C2H5)4 Pb
C. Adding (CH3)4 Pb
D. All
✅ The correct answer is option D.
7. Acidic amino acids have
A. 2 amino groups and 1 carboxylic group
B. 1 amino and 1 carboxylic group
C. 2 carboxylic groups and 1 amino group
D. 2 amino and 2 carboxylic groups
✅ The correct answer is option C.
8. The number of atoms in a molecule determines
A. macromolecule
B. macromolecule
C. molecularity
D. atomicity
✅ The correct answer is option D.
9. Hydrocarbons which burn with smoky flame are called
A. Aliphatic
B. Alicyclic
C. Aromatic
D. Aldehyde
✅ The correct answer is option C.
10. In the formation of Zwitterions proton goes from
A. Carboxyl to an amino group
B. Amino to a carboxyl group
C. Amino group only
D. Carboxyl group only
✅ The correct answer is option A.