Chemistry

The phenomenon of producing electrical signals in a crystal by applying pressure is known as

Statement – I : hcp and ccp structure are equally efficient.

Statement – II : Same number of atoms are present in a hcp and ccp unit cell.

In the light of above statement choose the correct option among the following.

The $E_{cell}^0$  for the cell reaction

$Cr+F{e}^{2+}\to C{r}^{3+}+Fe$ , will be (Given: $?G^0=-170kJmo{l}^{-1})$

Oxidising behaviour of $H_{2}S{O}_4$  is observed in

Correct IUPAC name of the following compounds is

Estimation of nitrogen using Kjeldahl's method is applicable to

Low spin complex of $d^4$  cation in an octahedral field will have the following energy (P is pairing energy)

Compound A having molecular formula $C_9{H}_{10}{O}_2$ on reaction with dilute $HCl$ gives compound $X$   and $Y.X$ evolves $C{O}_2$ on reaction with aqueous $NaHC{O}_3$  and $Y$ gives yellow precipitate on reaction with $I_2/NaOH$ . Structure of compound $A$  is

Statement – I : Phenol is converted to benzene on heating with zinc dust.

Statement – II: Chromic acid oxidises phenol to benzoquinone.

In light of the above statements, choose the correct answer.

Consider the following reaction sequence