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

Arrange the increasing order of solubility in water.

\[\ce{C2H5Cl, C2H5NH2, C2H5OH}\]

A 5% solution of \[\ce{Na2SO4.10H2O}\] (MW = 3 22) is isotonic with 2% solution of non- electrolytic, non volatile substance X. Find out the molecular weight of X.

Write the structure of the following compound:

1,4-Dibromobut-2-ene

The depression in freezing point of water observed for the same amount of acetic acid, trichloroacetic acid and trifluoroacetic acid increases in the order given above. Explain briefly.

Give the IUPAC names of the following compound:

\[\ce{(CCl3)3CCl}\]

Write down the electronic configuration of:

\[\ce{CO^2+}\]

What is meant by the chelate effect? Give an example.

Write the structure of the following organic halogen compound.

4-tert. Butyl-3-iodoheptane

Give the IUPAC name of the following compound:

\[\ce{(CCl3)3CCl}\]

How are the following conversions carried out?

Methyl magnesium bromide→2-Methylpropan-2-ol.

What is meant by the chelate effect? Give an example.

Write the structure of the following organic halogen compound.

4-tert-Butyl-3-iodoheptane

What is meant by the chelate effect? Give an example.

Give the IUPAC name of the following compound:

ClCH₂C ≡ CCH₂Br

Write the structure of the following organic halogen compound.

1,4-Dibromobut-2-ene

Write IUPAC name of the following compound:

\[\begin{array}{cc}
\phantom{................}\ce{CH3}\\
\phantom{.............}|\\
\ce{CH3 - CH - CH - C - CH3}\\
|\phantom{......}|\phantom{......}|\\
\phantom{...}\ce{CH3}\phantom{..}\ce{OH}\phantom{...}\ce{CH3}
\end{array}\]

Draw structure of the following compound.

2-Methoxypropane

Write the structures of the following organic halogen compounds.

1,4-Dibromobut-2-ene

Name the following halide according to IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

CH₃CH₂C(CH₃)₂CH₂I

Write the structure of the following organic halogen compound.

4-tert-Butyl-3-iodoheptane