HSC Science (Electronics) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Chemistry

Define boiling point

Write four points of differences between properties of nitrogen and other elements of group 15.

Iodine exists as

• polar molecular solid
• ionic solid
• nonpolar molecular solid
• hydrogen bonded molecular solid

Illustrate with example, the difference between a double salt and a co-ordination compound

What are ketones? 

What are ketones? 

Define antioxidants?

Draw structure of BHT.

What are f-block elements? 

Define Broad-spectrum antibiotics with a suitable example?

What are vitamins?

Write the structure of a nucleoside

Which of the following NOT present in DNA?

(a)  adenine                        

(b) Guanine

(c) Thymine

(d) Uracil

The element that does NOT exhibit allotropy is

1. As
2. Sb
3. Bi
4. N

Explain how does nitrogen exhibit anomalous behaviour amongst group 15 elements.

Explain cationic detergents.

What is salvarsan?

(A) An antiseptic

(B) An antibiotic

(C) An antifertility drug

(D) An analgesic

Explain Tranquilizers

What is Stephen reaction?

Explain Sidgwick’s electronic theory with suitable example