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

What are the different types of RNA found in the cell?

Write the important functional differences between DNA and RNA.

Give the reason for bleaching action of Cl₂.

Name two poisonous gases which can be prepared from chlorine gas.

How can you prepare Cl₂ from HCl ? Write reaction only.

Write balanced equations for chlorine gas is passed into a solution of NaI in water.

What is the difference between a nucleoside and nucleotide?

The two strands in DNA are not identical but are complementary. Explain.

Account for the following:

Fluorine forms only one oxoacid HOF.

Draw the structures of the following:
(1) HClO₄
(2) H₃PO₃

When RNA is hydrolysed, there is no relationship among the quantities of different bases obtained. What does this fact suggest about the structure of RNA?

Draw the structures of the following molecules: BrF₃

ICl is more reactive than I₂.

Account for the following: Interhalogens are more reactive than pure halogens.

Draw the structure of BrF₅

Draw the structures of the following : ClF₃

Why is ICl more reactive than I₂?

Draw the structure of the following molecule: 

XeF₄

Account for the following:

Helium is used in diving apparatus.

Draw the structures of the following molecules: XeF₂