Science (English Medium) कक्षा १२ - CBSE Question Bank Solutions for Chemistry

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is the structure of:-

The inner transition metals of 5f series are known as ____________.

For the same alkyl group, an alkyl bromide has a higher boiling point than alkyl fluoride because:

Alcohols have high boiling points because of ____________.

Benzene gets converted to benzaldehyde by Gatterman-Koch's reaction. The appropriate reagent for the conversion is:

The following reaction takes place in the presence of:

Arrange the following in decreasing order of their basic strength:

C₆H₅NH₂, C₂H₅NH₂, (C₂H₅)₂NH₂, NH₃

Hexagonal close packed arrangement of ions is described as ____________.

The arrangement ABC ABC.... is referred to as ____________.

What is the coordination number in a square close packed structure in two dimensions?

Nitrogen forms N₂, but phosphorus is converted into P₄ from P, the reason is:

Pentavalence in phosphorus is more stable when compared to that of nitrogen even though they belong to the same group. This is due to ____________.

Which of the following elements does not form stable diatomic molecules?

Which gas cannot be collected over water?

Which of the following compounds has the highest boiling point?

How many structural isomers are possible for a compound with the molecular formula C₃H₇Cl?

Which of the following halide is 2°?

The decreasing order of boiling points of alkyl halides is:

Which of the following is liquid at room temperature (b.p. is shown against it)?

Which of the following possesses the highest melting point?