Chemistry Questions (mcqs)

I need some help with these questions, and my sir had problem with them too. Highly appeciate any help! Thanks in advance!

Q. At the beginig of a reaction, the rate for the reaction is
a) largest then decreasing,
b) largest then constant
c) smallest then increasing
d) smallest and remains constant

Q. Slight oxidation of primary alcohol gives
a) ketone
b) organic acid
c) ether
d) aldehyde.

Q. Phenol is a derivative of
a) alkene
b) aliphatic hydrocarbon
c) aromatic hydrocarbon
d) alkyne

Q. A binary compound of Sodium is
a) sodium chloride
b) sodium chromate
c) sodium hypochlorite
d) sodium perchlorate

Q. If Ke is small, it indicates the equilibrium occurs
a) at a low product concentration
b) at a high product concentration
c) after a considerable time
d) with no forward reaction

Q. When 7 grams of Phosphoric acid (Mol Wt 98) is dissolved in 500 grams of water, the resulting solution is
a) 0.16 molar
b) 0.14 molar
c) 0.14 normal
d) 0.28 normal

Q. How would you distinguish between aliphatic and aromatic hydrocarbon?

1. a) largest then decreasing,
2. b) organic acid
3. c) aromatic hydrocarbon
4. a) sodium chloride
5. a) at a low product concentration
6. b) 0.14 molar
7. Aliphatic hydrocarbon is noncyclic whereas aromatic hydrocarbon is ring form.