Chemistry Test ...

Place the following alcohols in decreasing order of rate of dehydration with concentrated H₂SO₄ :

1. CH₃CH₂CH(OH)CH₂CH₂CH₃

2. (CH₃)₂C(OH)CH₂CH₂CH₃

3. (CH₃)₂C(OH)CH(CH₃)₂

4. CH₃CH₂CH(OH)CH(CH₃)₂

​5. CH₃CH₂CH₂CH₂CH₂CH₂OH

1.2 g of a salt with its empirical formula K_xH_y(C₂O₄)_z was dissolved in 50 mL of water and its 10 mL portion required 11 mL of a 0.1 M HCl solution to reach the equivalence point. In a separate titration, 15 mL of the stock solution required 20 mL 0.2475 M KOH to reach the equivalence point. Identify the correct option.

The structure of H₂O₂ is

In nitroprusside ion the iron and NO exist as Fe II and NO⁺ rather than Fe III and NO. These forms can be differentiated by

Among the following pair of oxides, which pair cannot be reduced by carbon to give the respective metals ?

Two liquids A and B are mixed. The partial vapour pressures of A and B in pure state are 100 and 200 mm respectively. If they are mixed in 1 : 4 mole ratio, assuming that mixture obeys Raoult's law, the mole fractions of A and B present in gaseous state in equilibrium of above solution are :

Identify the final product (Z) in the following sequence of reactions :

In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is

The standard e.m.f. of a cell, involving one electron change is found to be 0.591 V at 25. The equilibrium constant of the reaction is-
(F = 96500 C mol^-1 ,R = 8.314 JK^-1 mol^-1

For the indicator HIn the ratio [In_-]/[HIn] is 7.0 at pH of 4.3. K_eq for the indicator is [Given log 7 = 0.845 and Antilogo (0.545) = 3.5