List of top Questions asked in KCET

For which one of the following mixtures is composition uniform throughout?

For the coagulation of positively charged hydrated ferric-oxide sol, the flocculating power of the ions is in the order :

Identify the incorrect statement :

Which one of the following does not represent Arrhenius equation?

For the reaction PCI₅ → PCI₃ + Cl₂, rate and rate constant are 1.02×10^-4 mol L^-1s^-1 and 3.4×10^-5s^-1 respectively at a given instant. The molar concentration of PCI₅, at that instant is:

For the reaction, A⇌B, E_a = 50kJ mol^-1 and ΔH = -20 kJ mol^-1. When a catalyst is added, E_a decreases by 10kJmol^-1. What is the E_a for the backward reaction in the presence of catalyst?

The value of 'A' in the equation λ_m = λ_m° - A√C is same for the pair:

A current of 3 A is passed through a molten calcium salt for 1 hr 47 min 13 sec. The mass of calcium deposited is : (Molar mass of 1 Ca=40gmol^-1)

How many Coulombs are required to oxidise 0.1 mole of H₂O to oxygen?

Which one of the following pairs will show positive deviation from Raoult’s Law?

A mixture of phenol and aniline shows negative deviation from Raoult's law. This is due to the formation of:

Vapour pressure of a solution containing 18 g of glucose and 178.2 g of water at 100°C is :
(Vapour pressure of pure water at 100°C = 760 torr)

MnO exhibits:

Which of the following crystals has the unit cell such that a=b≠c and α=β=90°,γ=120° ?

The first chlorinated organic insecticide prepared is :

In the given sequence of reactions, identify 'P, 'Q', 'R' and 'S' respectively.

Which of the following halides cannot be hydrolysed ?

Which one of the following nitrate will decompose to give NO₂ on heating ?

Which one of the following properties is generally not applicable to ionic hydrides ?

In the reaction between moist SO₂ and acidified permanganate solution :

In the analysis of III group basic radicals of salts, the purpose of adding NH₄CI_(s), to NH₄OH is:

2-Methyl propane can be prepared by Wurtz reaction. The haloalkanes taken along with metallic sodium and dry ether are:

A haloalkane undergoes S_N2 or S_N1 reaction depending on:

Which of the following statements are true about [CoF₆]^3- ion?
I. The complex has octahedral geometry.
II. Coordination number of Co is 3 and oxidation state is + 6.
III. The complex is sp³d² hybridised.
IV. It is a high spin complex.

The complex compounds [Co(NH₃)₅SO₄]Br and [Co(NH₃)₅Br]SO₄ are: