An organic compound $[ A ]\left( C _4 H _{11} N \right)$, shows optical activity and gives $N _2$ gas on treatment with The structure of $A$ is :
Match items of column I and II
Which one amongst the following are good oxidizing agents?(A) \( \text{Sm}^{\text{2+}}\)(B) \(\text{Ce}^{\text{2+}}\)(C)\( \text{Ce}^{\text{4+}}\)(D) \(\text{Tb}^{\text{4+}}\)Choose the most appropriate answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason RAssertion A: Beryllium has less negative value of reduction potential compared to the other alkaline earth metalsReason R: Beryllium has large hydration energy due to small size of \(Be ^{2+}\) but relatively large value of atomization enthalpyIn the light of the above statements, choose the most appropriate answer from the options given below
In the depression of freezing point experiment
A. Vapour pressure of the solution is less than that of pure solvent
B. Vapour pressure of the solution is more than that of pure solvent
C. Only solute molecules solidify at the freezing point
D. Only solvent molecules solidify at the freezing point
Choose the most appropriate answer from the options given below:
The major products ' A ' and ' B ', respectively, are
Match items of Row I with those of Row II
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion (A) : An aqueous solution of \(KOH\) when used for volumetric analysis, its concentration should be checked before the use Reason (R) : On aging,\(KOH\) solution absorbs atmospheric \(CO _2\)In the light of the above statements, choose the correct answer from the options given below :
