PUC Science 2nd PUC Class 12 - Karnataka Board PUC Question Bank Solutions for Chemistry

Give an example and suggest a reason for the following feature of the transition metal chemistry:

A transition metal exhibits the highest oxidation state in oxides and fluorides.

Give an example and suggest a reason for the following feature of the transition metal chemistry:

 The highest oxidation state is exhibited in oxoanions of a metal.

Indicate the steps in the preparation of K₂Cr₂O₇ from chromite ore.

Indicate the steps in the preparation of KMnO₄ from pyrolusite ore.

Write the formula for the given coordination compound:

Tetraamminediaquacobalt (III) chloride

Write the formula for the given coordination compound:

Potassium tetracyanidonickelate (II)

Write the formula for the given coordination compound:

Tris(ethane−1, 2−diamine) chromium (III) chloride

Write the formula for the given coordination compound:

Amminebromidochloridonitrito-N-platinate (II)

Write the formula for the given coordination compound:

Dichloridobis(ethane−1, 2−diamine)platinum (IV) nitrate

Using IUPAC norms, write the formula for the following:

Tetrahydroxidozincate(II)

Using IUPAC norms, write the formula for the following:

Potassium tetrachloridopalladate(II)

Using IUPAC norms write the formula for the following:

Diamminedichloridoplatinum(II)

Using IUPAC norms, write the formula for the following: 

Hexaamminecobalt (III) sulphate

Using IUPAC norms, write the formula for the following:

Potassium tri(oxalato)chromate(III)

Using IUPAC norms, write the formula for the following:

Tetrabromidocuprate(II)

Arrange the following polymers in increasing order of their intermolecular forces.

(i) Nylon 6, 6, Buna-S, Polythene.

(ii) Nylon 6, Neoprene, Polyvinyl chloride.

In which classes, the polymers are classified on the basis of molecular forces?

Define thermoplastics with two examples of each.

Define thermosetting polymers with two examples of them.

Enumerate the reactions of D-glucose which cannot be explained by its open chain structure.