Chemistry

Given below are two statements:

Statement-I : The process of producing syn-gas is called gasification of coal.                                     

Statement-II : The composition of syn-gas is CO + CO₂ + H₂ (1 : 1 : 1)

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

The structure of product C, formed by the following sequence of reactions is:

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Metallic character decreases and non-metallic character increases on moving from left to right in a period.

Reason (R) : It is due to increase in ionization enthalpy and decrease in electron gain enthalpy, when one moves from left to right in a period.

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

$\overline{Ge\left(Z=32\right)}$ in its ground state electronic configuration has x completely filled orbitals with m₁ = 0. The value of x is_________.

The number of hydrogen bonded water molecule(s)  associated with stoichiometry CuSO_{4 $\cdot$} 5H₂O is

The number of halogen/(s) forming halic (V) acid is_________.

According to the following figure, the magnitude of the enthalpy change of the reaction $A+B\to M+N$ in KJ mol^-1

For a first order reaction, the ratio of the time for 75% completion of a reaction to the time for 50% completion is________. (Integer answer)

Consider the suphides HgS, PbS, CuS, Sb₂S₃, As₂S₃, and CdS. Number of these sulphides soluble in 50% HNO₃ is________.

Consider the following cell reaction: 

$C{d}_{\left(s\right)}+H{g}_{2}S{O}_{4\left(s\right)}+\frac{9}{5}{H}_2{O}_{\left(I\right)}+CdS{O}_4\cdot \frac{9}{5}{H}_2{O}_{\left(s\right)}+2H{g}_{\left(I\right)}$

The value of $E_{cell}^0$ is 4.315V at 25°C. If $\Delta H^o$ = -825.2 kJ mol^-1, the standard entropy change   $\Delta S°$  in JK^-1 is_________. (Nearest integer)

           [Given: Faraday constant = 96487 C mol^-1]