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

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?

Mg reacts with RBr best in ____________.

Isomerization of glucose produces ____________.

Which of the following statement is correct about fructose?

Fructose is ____________.

The sugar present in fruits is ____________.

The sugar present in honey is ____________.

Which of the following is the sweetest sugar?

p-dichlorobenzene has a higher melting point than its o- and m-isomers because ____________.

In NaCl structure ____________.

When 1 mole of benzene is mixed with 1 mole of toluene? (vapour pressure of benzene – 12.8 kPa, Toluene = 3.85 kPa)

Assertion: When methyl alcohol is added to water, the boiling point of water increases.

Reason: When a volatile solute is added to a volatile solvent elevation in boiling point is observed.

Arrange the following compounds in the increasing order of their densities.

(a)

(b)

(c)

(d)

Which of the following isomer has the highest melting point?

Which reagents are required for one step conversion of chlorobenzene to toluene?

The reaction of toluene with Cl₂ in presence of FeCl₃ gives ‘X’ while the of toluene with Cl₂ in presence of light gives ‘Y’. Thus ‘X’ and ‘Y’are ______.

Which of the following statement is not true about the hexagonal close packing?