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

What is the basic theme of organisation in the periodic table?

Calculate the number of electrons which will together weigh one gram.

Calculate the mass and charge of one mole of electrons.

Write the complete symbol for the atom with the given atomic number (Z) and Atomic mass (A)

Z = 17, A = 35

Write the complete symbol for the atom with the given atomic number (Z) andAtomic mass (A).

Z = 92, A = 233

Write the complete symbol for the atom with the given atomic number (Z) and atomic mass (A).

Z = 4, A = 9

Explain the Formation of a Chemical Bond.

Write Lewis symbols for the following atoms and ions: S and S^2–.

Write Lewis symbols for the following atoms and ions: Al and Al³⁺.

Write Lewis symbols for the following atoms and ions H and H^–.

Use Lewis symbols to show electron transfer between the following atoms to form cations and anions:-

K and S

Use Lewis symbols to show electron transfer between the following atoms to form cations and anions:

Ca and O

Use Lewis symbols to show electron transfer between the following atoms to form cations and anions:

Al and N

What will be the minimum pressure required to compress 500 dm³ of air at 1 bar to 200 dm³ at 30°C?

What would be the SI unit for the quantity pV²T ²/n?

A thermodynamic state function is a quantity ______.

For an isolated system, ΔU = 0, what will be ΔS?

Define environmental chemistry.

What are the common chemical features of alkali metals?

Why are alkali metals not found in nature?