HSC Science कक्षा ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Chemistry

Complete the following chemical reaction and classify the reaction.

\[\ce{CaO + H2O ->}\]

Explain the exchange reactions of deuterium.

Which of the following compounds will not evolve H₂ gas on reaction with alkali metals?

Which of the following has the highest tendency to give the reaction

\[\ce{M^+_{(g)} ->[Aqueous][Medium] M^+_{(aq)}}\]

Sodium is stored in _________.

RbO₂ is _________.

In case of alkali metal halides, the ionic character increases in the order

In which process, fused sodium hydroxide is electrolysed for the extraction of sodium?

Match the flame colours of the alkali and alkaline earth metal salts in the bunsen burner

Which is the correct sequence of solubility of carbonates of alkaline earth metals?

A colourless solid substance (A) on heating evolved CO₂ and also gave a white residue, soluble in water. Residue also gave CO₂ when treated with dilute HCl.

The compound (X) on heating gives a colourless gas and a residue that is dissolved in water to obtain (B). Excess of CO₂ is bubbled through aqueous solution of B, C is formed. Solid (C) on heating gives back X. (B) is

Among the following the least thermally stable is

Why sodium hydroxide is much more water soluble than sodium chloride?

Write the chemical equations for the reactions involved in the Solvay process of preparation of sodium carbonate.

An alkali metal (x) forms a hydrated sulphate, \[\ce{X2SO4.10H2O}\]. Is the metal more likely to be sodium (or) potassium?

Write a balanced chemical equation for the following chemical reaction.

Lithium metal with nitrogen gas

Write a balanced chemical equation for the following chemical reaction.

heating solid sodium bicarbonate

Write a balanced chemical equation for the following chemical reaction.

solid potassium hydroxide with CO₂

Give the systematic name for the following.

Lye