Class 12th

The solubility of CdSO? in water is 8.0 * 10? mol L?¹. Its solubility in 0.01 M H?SO? solution is ________ * 10? mol L?¹. (Round off to the nearest integer).
(Assume that solubility is much less than 0.01 M)

Consider the above reaction where 6.1 g of Benzoic acid is used to get 7.8g of m- bromo benzoic acid. The percentage yield of the product is ________. (Round off to the nearest integer).
[ Given : Atomic masses : C: 12.0u, H:1.0u, O:16.0u, Br:80.0 u]

A reaction has a half life of 1 min. The time required for 99.9% completion of the reaction is ________ min. (Round off to the nearest integer).
[Use In 2 = 0.69; In 10 = 2.3]

In the above reaction, the reagent "A" is:

The molar conductivities at infinite dilution of barium chloride, sulphuric acid and hydrochloric acid are 280, 860 and 426 Scm² mol?¹ respectively. The molar conductivity at infinite dilution of barium sulphate is ________ S cm² mol?¹. (Round off to the nearest integer).

In Tollen's test for aldehyde, the overall number of electron(s) transferred to the Tollen's reagent formula [Ag(NH?)?]? per aldehyde group to form silver mirror is ________. (Round off to the nearest integer).

Kindly consider the following

A xenon compound 'A' upon partial hydrolysis gives XeO?F?. The number of lone pair of electrons present in compound A is ________. (Round off to the nearest integer).

Which of the following reduction reaction CANNOT be carried out with coke?

A solute A dimerizes in water. The boiling point of a 2 molal solution of A is 100.52°C. The percentage association of A is ________. (Round off to the nearest integer).
[ Use: K? for water = 0.52 K kg mol?¹, Boiling point of water = 100°C]