List of top Chemistry Questions asked in KCET

The group reagent NH\(_4\)Cl (s) and aqueous NH\(_3\), will precipitate which of the following ion

Among the following 0.1 m aqueous solutions, which one will exhibit the lowest boiling point elevation, assuming complete ionization of the compounds in solution?

180 g of glucose, \(C_6H_{12}O_6\), is dissolved in 1 kg of water in a vessel. The temperature at which water boils at 1.013 bar is ______ (given, \(K_b\) for water is 0.52 K kg mol\(^{-1}\)). Boiling point for pure water is 373.15 K

Which of the following statements is/are true about equilibrium?

Which of the following statements are true about \( [NiCl_4]^{2-} \)?
(a) The complex has tetrahedral geometry.
(b) Co-ordination number of Ni is 2 and oxidation state is +4.
(c) The complex is sp\(^3\) hybridised.
(d) It is a high spin complex.
(e) The complex is paramagnetic.

For a given half cell, \( \text{Al}^{3+} + 3e^- \rightarrow \text{Al} \) on increasing the concentration of aluminium ion, the electrode potential will

In the following pairs, the one in which both transition metal ions are colourless is

According to Le Chatelier's principle, in the reaction \( \text{CO}(g) + 3\text{H}_2(g) \rightleftharpoons \text{CH}_4(g) + \text{H}_2\text{O}(g) \), the formation of methane is favoured by

The incorrect statement about the Hall-Heroult process is:

The correct decreasing order of boiling points of hydrogen halides is:

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)

In the given sequence of reactions, identify ‘P’, ‘Q’ and ‘S’ respectively:

From the diagram

\( \Delta H \) for the reaction C → A is:

In the reaction between moist SO₂ and acidified permanganate solution:

Which one of the following is a cationic detergent?

Gold sol is not a:

A haloalkane undergoes $S_{N^2}$ or $S_{N^1}$ reaction depending on:

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

The value of 'A' in the equation \( \lambda_m = \lambda_m^0 - A\sqrt{C} \) is same for the pair

Identify the wrong relation for real gases:

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

The type of linkage present between nucleotides is:

The compound is