Ncert Solutions Chemistry Class 12th

Consider the above reaction, the product 'X' and 'Y' respectively are:

Consider the given reaction, percentage yield of

In the reaction of hypobromite with amide, the carbonyl carbon is lost as:

Match List – I with List – II:
| List – I (Class of Chemicals) | List – II (Example) |
| :--- | :--- |
| (a) Antifertility drug | (i) Meprobamate |
| (b) Antibiotic | (ii) Alitame |
| (c) Tranquilizer | (iii) Norethindrone |
| (d) Artificial Sweetener | (iv) Salvarsan |

Choose the most appropriate match:

Given below are two statements:
Statement I: Non-biodegradable wastes are generated by the thermal power plants.
Statement II: Bio-degradable detergents leads to eutrophication.
In the light of the above statements, choose the most appropriate answer from the options given below:

A hard substance melts at high temperature and is an insulator in both solid and in molten state. This solid is most likely to be a/ an:

In basic medium H?O? exhibits which of the following reactions?
(A) Mn²? → Mn?
(B) I? → I?
(C) PbS → PbSO?
Choose the most appropriate answer from the options given below:

Given below are two statements:
Statement I: C?H?OH and AgCN both can generate nucleophile.
Statement II: KCN and AgCN both will generate nitrile nucleophile with all reaction conditions.
Choose the most appropriate option:

2 molal solution of a weak acid HA has a freezing point of 3.885°C. The degree of dissociation of this acid is _____ * 10?³. (Round off to the nearest integer).
[ Given : Molal depression constant of water = 1.85 K kg mol?¹, Freezing point of pure water = 0°C]

2NO(g) + Cl?(g) ? 2NOCl(s)
This reaction was studied at -10°C and the following data was obtained

[NO]? and [Cl?]? are the initial concentrations and r? is the initial reaction rate. The overall order of the reaction is _____. (Round off to the nearest integer).