Chemistry

The correct statement about H₂O₂ are:
(A) Used in the treatment of effluents.
(B) Used as both oxidizing and reducing agents
(C) The two hydroxyl groups lie in the same plane.
(D) Miscible with water.
Choose the correct answer from the options given below:

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)

The gas phase reaction 2A(g) ? A?(g) At 400 K has ΔG° = +25.2 kJ mol?¹.
The equilibrium constant K? for this reaction is ________ *10?². (Round off to the nearest integer).
[ Use: R = 8.3 J mol?¹ K?¹, In10 = 2.3, log? 2 = 0.30, 1atm = 1 bar]
[antilog (-0.3) = 0.501]

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).

An unsaturated hydrocarbon X on ozonolysis gives A. Compound A when warmed with ammonical silver nitrate forms a bright silver mirror along the sides of the test tube. The unsaturated hydrocarbon X is:

10.0 mL of Na?CO? solution is titrated against 0.2 M HCl solution.
The following titre values were obtained in 5 readings:
4.8 mL, 4.9 mL 5.0 mL, 5.0 mL and 5.0 mL
Based on these readings, and convention of titrimetric estimation the concentration of Na?CO? solution is ________ mM. (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).