Class 12th

Correct reactivity order towards anhydrous ZnCl₂ + conc. HCl

Cu(s) + Sn2+(0.001M) Cu2+ (0.01M) + Sn(s)

The Gibbs free energy change for the above reaction at 298 K is x * 101 KJmol1. The value of x is __________. (nearest integer)

[Given : ${}_{{}^{}}^{}$ 0.34V; ${}_{{}^{}}^{}$ = 0.14V; F = 96500 Cmol1]

Which one of the following set of elements can be detected using sodium fusion extract?

Given below are two statements :
Statement I: Penicillin is a bacteriostatic type antibiotic.
Statement II: The general structure of penicillin is:

Choose the correct option:

Ammonium salts on heating with slaked lime liberate a colourless gas (X). Identify the incorrect statement for gas (X).

The osmotic pressure exerted by a solution prepared by dissolving 2.0g of protein of molar mass 60 kg mol1 in 200 mL of water at 27°C is_______Pa. (nearest integer)

(Use R = 0.083 L bar mol1 K1)

Which one of the following complexes exhibits chirality?

R–CN --(i) DIBAL-H / (ii) H₂O→ R – Y
Consider the above reaction and identify “Y”

Kindly consider the following

In a solid AB, A atoms are in ccp arrangement and B atoms occupy all octahedral sites. If two atoms from the opposite face are removed, then the resultant stoichiometry of the compound is AxBy. The value of x is ___________(nearest integer)