Science (English Medium) Class 12 - CBSE Question Bank Solutions for Chemistry

When sucrose is hydrolysed the optical rotation values are measured using a polarimeter and are given in the following table:

1. Account for the two specific rotation values.
2. What is the specific name given to sucrose based on the above observation?
3. One of the products formed during the hydrolysis of sucrose is a glucose, that reacts with hydroxylamine to give compound A. Identify compound A.

What is actinoid contraction?

What causes actinoid contraction?

Arrange the decreasing order of pKb values.

\[\ce{C6H5NH2, C6H5NHCH3, C6H5CH2NH2, CH3NH2, NH3}\]

Write the structure of the following organic halogen compound.

1,4-Dibromobut-2-ene

Indicate the type of isomerism exhibited by the following complex and draw the structures for this isomer:

\[\ce{[Pt(NH3)(H2O)Cl2]}\]

What is the basicity of H₃PO₄?

How are the following conversion carried out?

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

Indicate the types of isomerism exhibited by the following complexes and draw the structures for these isomers: [Pt(NH₃)(H₂O)Cl₂]

Write the structure of the following organic halogen compound.

4-tert-Butyl-3-iodoheptane

Write the structure of the following organic halogen compound.

4-tert-Butyl-3-iodoheptane

How are the following conversions carried out?

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

Write the structure of the following organic halogen compound.

4-tert-Butyl-3-iodoheptane

What is the basicity of \[\ce{H3PO4}\]?

How are the following conversions carried out?

\[\ce{Methyl magnesium bromide ->2-Methylpropan-2-ol}\]

Write the structure of the following organic halogen compound:

4-tert-Butyl-3-iodoheptane

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

 \[\ce{CH3 C(C2H5)2CH2Br}\]

Write the structure of the following organic halogen compound.

4-tert-Butyl-3-iodoheptane

How are the following conversions carried out?

\[\ce{Methyl magnesium bromide -> 2-Methylpropan-2-ol}\]

How is the following conversion carried out?

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