MCQ_SINGLE

In adiabatic compression temperature of gas becomes $4$ times while volume decreased $1/2$ times find $\gamma$ :

MCQ_SINGLE

Which of the following is the correct order of the reactivity of given nucleophiles when treated with $CH_{3}$ in methanol? $F^{-}$, $I^{-}$, $C_{2}H_{5}O^{-}$, $C_{6}H_{5}O^{-}$ :

MCQ_SINGLE

Given below are two statements . Statement-1: $HX$ bond length is higher in $HCl$ than $HF$ . Statement-2: The lowest boiling point in hydride of group 15 element is having covalency 4 .

NUMERICAL

1 g of $AB_{2}$ is dissolved in 50 g of a solvent such that $\Delta T_{f}=0.689~K.$ When 1 g of AB is dissolved in 50 g of the same solvent, $\Delta T_{f}=1.176~K$. Find the molar mass of $AB_{2}$. (Report to nearest integer).

NUMERICAL

Statement-l: Sucrose is dextrorotatory and upon hydrolysis it becomes laevorotatory . Statement-II: Sucrose on hydrolysis gives glucose and fructose such that the laevo rotation of glucose is more than dextrorotation of fructose .

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