Science (English Medium) इयत्ता ११ - CBSE Question Bank Solutions for Chemistry

What is hybridization state of each carbon atom in the following compound?

C₆H₆

Indicate the σ and π bonds in the following molecules:

 CH₂ = C = CH₂

Indicate the σ and π bonds in the following molecules:

CH₃NO₂

Indicate the σ and π bonds in the following molecule:

HCONHCH₃

In the organic compound CH₂ = CH – CH₂ – CH₂ – C ≡ CH, the pair of hybridized orbitals involved in the formation of: C₂ – C₃ bond is ______.

Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.

Write the names of isotopes of hydrogen. What is the mass ratio of these isotopes?

Why does hydrogen occur in a diatomic form rather than in a monoatomic form under normal conditions?

Write the formulae for the following compound:

Mercury(II) chloride

What are the common physical features of alkali metals?

What is hybridization state of each carbon atom in the following compound?

CH₂ = C = O

What is hybridization state of each carbon atom in the following compound?

CH₃CH = CH₂

What is hybridization state of each carbon atom in the following compound?

(CH₃)₂CO

What is hybridization state of each carbon atom in the following compound?

CH₂ = CHCN

Consider the isoelectronic species, \[\ce{Na+, Mg^{2+}, F–}\] and \[\ce{O2-}\]. The correct order of increasing length of their radii is ______.

Choose the correct order of atomic radii of fluorine and neon (in pm) out of the options given below and justify your answer.

What do you understand by exothermic reaction and endothermic reaction? Give one example of each type.

Match the items given in Column I with examples given in Column II.

Assertion (A): Sodium chloride formed by the action of chlorine gas on sodium metal is a stable compound.

Reason (R): This is because sodium and chloride ions acquire octet in sodium chloride formation.

Which of the following statements is correct?