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

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).

Give the trends in atomic size on moving across the period left to right.

Why is the size of neon greater than fluorine?

Why is the size of sodium is greater than magnesium?

Which is greater in size an atom or a cation?

Which is greater in size an atom or an anion?

Which is greater in size Fe²⁺ or Fe³⁺?

Size of atom progressively becomes smaller when we move from sodium (Na) to chlorine (CI) in the third period of the periodic table?

Fill in the blank:

On moving across a period from right to left in the periodic table, the atomic size of the atom ___________.

Give reasons for the following:

The size of the anion is greater than the size of the parent atom.