MCQ_SINGLE

Given below are two statements: Statement I: Arginine and Tryptophan are essential amino acids. Statement II: Glycine does not have any chiral carbon.

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

The $3d$-block element which does not liberate hydrogen gas on reaction with dilute $HCl$ is .

MCQ_SINGLE

Consider the following statements: (A) Propanal and propanone are functional isomers; (B) Ethoxyethane and methoxypropane are metamers; (C) But-2-ene shows optical isomerism; (D) But-1-ene and but-2-ene are functional isomers; (E) Pentane and 2,2-dimethylpropane are chain isomers. The correct statements are:

MCQ_SINGLE

In the following reaction, $MnO4^{2-} \xrightarrow{H^{+}}$ ?. Manganate ion undergoes disproportionation to form:

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