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

Define boiling point

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

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

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

Which of the followings is a trihydric alcohol ?

(a) n-propyl alcohol

(b) Glycerol                         

(c)  Glycol                       

(d) Glycine

Explain the term Antiseptics

Write ‘four’ characteristics of co-ordinate complex ion.

Write ‘four’ physical methods of preserving food materials

Draw structure of Chlorine pentafluoride

Write the structure of a nucleotide