Chemistry

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

The correct order of heat of hydrogenation is

40% of HI undergoes decomposition to H2 and I2 at 300K. ${}^{}$ for this decomposition reaction at one atmosphere pressure is_____________J mol1 (nearest integer)

(Use R = 8.31 JK1 mol1; log 2= 0.3010, In 10 = 2.3, log 3 = 0.477)

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?

A fish swimming in water body when taken out from the water body is covered with a film of water of weight 36g. When it is subjected to cooking at 100°C, then the internal energy for vaporization in kJ mol1 is_____________. (nearest integer)

[Assume steam to be an ideal gas. Given ${\Delta }_{vap}{H}^{\Theta }$ ${}_{}{}^{}$ for water at 373K and 1 bar is 41.1 kJ mol1; R = 8.31 JK1mol1]

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

The term - TΔS_total at constant temperature and pressure is known as