The gold number range of some of the lyophilic colloids is given below :
A: 0.005 0.01, B: 0.15-0.25, C: 0.04- 1.0 and D: 15-25.
Which among these can be used as a better protective colloid?

Although chlorine is an electron withdrawing group, yet it is ortho- and para-directing in electrophilic aromatic substitution reaction because
(A) Chlorine withdraws electrons through inductive effect.
(B)Chlorine destabilises the intermediate carbocation formed during electrophilic substitution.
(C) Chlorine accepts electrons through resonance.
(D) Chlorine releases electrons through resonance.
Choose the correct answer from the options given below:

In Etard reaction, the final product is

Aniline does not undergo Friedel-Crafts reaction because
(A) It forms salt with the Lewis acid catalyst, AlCl_3.
(B) Nitrogen of aniline acquires negative charge.
(C) Nitrogen of aniline acquires positive charge.
(D) Nitrogen acts as a strong deactivating group in the further reaction.
Choose the correct answer from the options given below :

Match List-I with List-II:

Choose the correct answer from the options given below

Match List-I with List-II:

Choose the correct answer from the options given below:

Match List-I with List-II:

Choose the correct answer from the options given below :

Match List-I with List-II:

Choose the correct answer from the options given below:

In the following table, match the reactants given in List-I with the correct product in List-II as the reaction of hydration of alkene under acidic condition.

Choose the correct answer from the options given below: