Science (English Medium) Class 11 - CBSE Question Bank Solutions for Chemistry

State as to why a solution of Na₂CO₃ is alkaline?

Write a balanced equation for the reaction between Na₂O₂ and water.

Draw a formula for the first five members of the homologous series beginning with the given compound.

H–COOH

Draw a formula for the first five members of the homologous series beginning with the given compound.

CH₃COCH₃

Draw a formula for the first five members of the homologous series beginning with the given compound.

H–CH=CH₂

Identify the functional group in the following compound.

Identify the functional group in the following compound.

Identify the functional group in the following compound.

Complete the following reaction:

\[\ce{H_{2(g)} + M_M O_{O(s)} ->[\Delta]}\] ?

Complete the following reaction:

\[\ce{CO_{(g)} + H_{2(g)} ->[\Delta][catalyst]}\] ?

Complete the following reaction:

\[\ce{C3H_{8(g)} + 3H2O_{(g)} ->[\Delta][catalyst]}\]?

Complete the following reaction:

\[\ce{Zn_{(s)} + NaOH_{(aq)} ->[heat]}\]?

Assign oxidation numbers to the underlined element in the following species:

 NaH₂PO₄

Assign oxidation numbers to the underlined element in the following species:

NaHSO₄

Assign oxidation numbers to the underlined element in the following species:

H₄P₂O₇

Assign oxidation numbers to the underlined elements in the following species:

K₂MnO₄

Assign oxidation numbers to the underlined elements in the following species:

CaO₂

Assign oxidation numbers to the underlined elements in the following species:

NaBH₄ 

Assign oxidation numbers to the underlined elements in the following species:

H₂S₂O₇

Assign oxidation numbers to the underlined elements in the following species:

KAl(SO₄)₂.12 H₂O