HSC Science (General) 11th Standard - Maharashtra State Board Question Bank Solutions

Consider the oxides Li₂O, CO₂, B₂O₃.

Which oxide would you expect to be the most basic?

Consider the oxides Li₂O, CO₂, B₂O₃.

Which oxide would be the most acidic?

Consider the oxides Li₂O, CO₂, B₂O₃.

Give the formula of an amphoteric oxide.

Choose the correct option.

Thallium shows different oxidation state because __________

Identify the group 14 element that best fits the following description.

Nonmetallic element

Identify the group 14 element that best fits the following description.

Form the most acidic oxide

Identify the group 14 element that best fits the following description.

They prefer the +2 oxidation state.

Identify the group 14 element that best fits the following description.

Forms strong π bonds.

Give reason.

Ga³⁺ salts are better reducing agents while Tl³⁺ salts are the better oxidizing agent.

Give reason.

PbCl₄ is less stable than PbCl₂.

Give the formula of a compound in which carbon exhibit an oxidation state of +4

Give the formula of a compound in which carbon exhibit an oxidation state of +2

Give the formula of a compound in which carbon exhibit an oxidation state of −4

Explain the trend in the oxidation state of elements from nitrogen to bismuth.

State true or false. Correct the false statement.

The acidic nature of oxides of group 13 increases down the graph.

Which of the following will exhibit geometrical isomerism?

Complete the following reaction sequence:

\[\ce{HC ≡ CH ->[LiNH2] A ->[CH3CH2Cl] B ->[HBr] C}\]

Comment on the acidic nature of B.

Explain the following:

Turmeric powder can be used as an antiseptic.

Identify the functional group in the following molecule:

Aspirin

Identify the functional group in the following molecule:

Paracetamol