Ncert Solutions Chemistry Class 12th

Heavier element of p block do not from pπ− pπ bonds as their atomic orbital are so large and diffius that they cannot have effecitve overlapping.

Acyl chloride is hydrogenated over catalyst, palladium or barium sulphate. This reaction is called Rosenmund reaction.

The inertness of ? subshell electrons towards bond formation is known as inert pair effect. This effect increases down the group thus, for Sn,  oxidation state is more stable, whereas, for Pb,  oxidation state is more stable, i.e.,  is reducing while  is oxidising.

${\left(\frac{C^{14}}{C^{12}}\right)}_t=\frac{{\left(\frac{C^{14}}{C^{12}}\right)}_{t=0}}{{\left(2\right)}^n}$

n = 3

t = 3 * 1580

= 4740 years

There is one chiral centre present in given compound which is unsymmetrical.

            Total number of isomers = 2ⁿ

            n = number of stereogenic centre

            n = 1

               = 2¹

               = 2

            Total two optical isomers are possible

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HVZ reaction:

Cannizzaro reaction is shown by aldehydes containing no a–H atoms