(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Which of the following about oxides is correct?

Identify the reactant and write the balanced equation for the following:

Nitric acid reacts with compound Q to give a salt Ca(NO₃)₂, water and carbon dioxide.

Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Write balanced equations for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

In covalent compounds, the bond is formed due to ______ of electrons.

Explain dipole (polar) molecule by taking hydrogen chloride as an example.

For each of the salt: A, B, C and D, suggest a suitable method of its preparation.

C is a soluble salt of copper.

Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain: Copper sulphate.

Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain: lron(II) sulphate

Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain: Zinc carbonate.

Give equations for the following conversions A to E.

Give a balanced equation for the reaction:

Silver nitrate solution and sodium chloride solution.

Arrange the following as per the instruction given in the brackets:

Na, K, Li (Increasing atomic size)

Arrange the following as per the instruction given in the bracket:

Mg, Cl, Na, S, Si (decreasing order of atomic size).

Answer the following in respect of element `31/15 P`

Give its electronic configuration

Answer the following in respect of element `31/15 P `

Is it a reducing agent or oxidizing agent?

Answer the following in respect of element `31/15 P `

Give its formula with chlorine?

What do you understand by atomic size? State its unit?

Give the trends in atomic size on moving down the group.

Arrange the elements of second and third periods in increasing order of their atomic size (excluding noble gases).