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

Explain the preparation of the following compound.

Chloropicrin

Explain the preparation of the following compound.

Freon-12

A hydrocarbon C₃H₆(A) reacts with HBr to form compound (B). Compound (B) reacts with aqueous potassium hydroxide to give (C) of molecular formula C₃H₆O. What are the (A), (B) and (C). Explain the reactions.

Two isomers (A) and (B) have the same molecular formula C₂H₄Cl₂. Compound (A) reacts with aqueous KOH gives compound (C) of molecular formula C₂H₄O. Compound (B) reacts with aqueous KOH gives compound (D) of molecular formula C₂H₆O₂. Identify (A), (B), (C) and (D).

Which of the following pairs of elements exhibit diagonal relationship?

Why do halogens act as oxidising agents?

Mention any two anomalous properties of second period elements.

Explain the diagonal relationship.

When hydrogen peroxide is shaken with an acidified solution of potassium dichromate in presence of ether, the ethereal layer turns blue due to the formation of

Hydrogen peroxide can function as an oxidising agent as well as the reducing agent. substantiate this statement with suitable examples.

Compare the structures of H₂O and H₂O₂.

Lithium shows diagonal relationship with __________.

Which of the following statement is false?

Give the systematic name for the following.

Milk of magnesia

Describe briefly the biological importance of Calcium and magnesium.

Which would you expect to have a higher melting point, magnesium oxide or magnesium fluoride? Explain your reasoning.

Aerosol cans carry a clear warning of the heating of the can. Why?

P₁ and P₂ are the vapour pressures of pure liquid components, 1 and 2 respectively of an ideal binary solution If x₁ represents the mole fraction of component 1, the total pressure of the solution formed by 1 and 2 will be

Which one of the following binary liquid mixtures exhibits positive deviation from Raoults law?

At 100°C the vapour pressure of a solution containing 6.5 g a solute in 100 g water is 732 mm. If K_b = 0.52, the boiling point of this solution will be ______.