MCQ
Select the incorrect statement
- A$'Ne'$ is used in discharge tube
- BLiq. $'He'$ is used as a cryogenic agent
- ✓$'He'$ is inflammable gas and lighter gas.
- D$'Ar'$ used in a metallurgical process
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(Rounded-off to the nearest integer) $\left[ K _{ b }=0.52 \,K \,kg\, mol ^{-1}\right]$
$(A)$ Hydrolysis of Marshall's acid gives $H_2SO_4$ and $H_2O_2$ as final product
$(B)$ In $SCNSiH_3$ structure around $N$ is bent
$(C)$ Basic unit for silicates is $SiO_4^{-4}$
$(D)$$N{H_4}Cl + NaOH \to N{H_3} \uparrow $
$\ln k=33.24-\frac{2.0 \times 10^{4} \,K }{ T }$
The Activation energy for the reaction is given by $...\,k\,\,J mol ^{-1}$. (In Nearest integer)
(Given: $R =8.3\, J\, K ^{-1} \,mol ^{-1}$ )