Ncert Solutions Chemistry Class 12th

Among the following structure, which will show the most stable enamine formation?

Which will have the highest enol content?

Kindly consider the following 

A 42.12% (w/v) solution of NaCl causes precipitation of a certain sol in 10 hours. The coagulating value of NaCl for the sol is

[Given molar mass : Na = 23.0g mol^-1; Cl = 35.5g mol^-1]

${\left(C_7{H}_5{O}_2\right)}_2\stackrel{hv}{\to }\left[X\right]\to 2{\stackrel{•}{C}}_6{H}_5+2C{O}_2$

Consider the above reaction and identify the intermediate 'X'

Consider the following reaction:

A + alkali -> B(Major Product)

If B is an oxoacid of phosphorous with no P-H bond, then A is:

Given below are two statements:

Statement I: According to the Ellingham diagram, any metal oxide with higher $\Delta G°$ is more stable that the one with lower $\Delta G°$ .

Statement II: The metal involved in the formation of oxide placed lower in the Ellingham diagram can reduce the oxide of a metal placed higher in the diagram.

In the light of the above statements, choose the most appropriate answer form the options given below:

The ${\left(\frac{\partial E}{\partial T}\right)}_P$  of different types of half cells are as follows:

(Where E is the electromotive force )

Which of the above half cells would be preferred to be used as reference electrode?

In the estimation of bromine, 0.5g of an organic compound gave 0.40g of silver bromide. The percentage of bromine in the given compound is____________% (Nearest integer)

           (Relative atomic masses of Ag and Br are 18 u and 80 u, respectively).