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HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Important Questions

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Name any two diseases caused by deficiency of Vitamin A

Appears in 1 question paper
Chapter: [14.03] Vitamins
Concept: Vitamins >> Important Vitamins, Their Sources and Their Deficiency Diseases

Which of the following vitamins is water soluble?

  1. A
  2. D
  3. E
  4. B
Appears in 1 question paper
Chapter: [14.03] Vitamins
Concept: Vitamins >> Classification of Vitamins

Which among the following vitamins is also known as riboflavin?

(A) B1

(B) B2

(C) B6

(D) B12

Appears in 1 question paper
Chapter: [14.03] Vitamins
Concept: Vitamins >> Important Vitamins, Their Sources and Their Deficiency Diseases

Vitamin ‘C’ belongs to the class of—

(a) Vitamins of aliphatic series

(b) Vitamins of aromatic series

(c) Vitamins of alicyclic series

(d) Vitamins of heterocyclic series

 

Appears in 1 question paper
Chapter: [14.03] Vitamins
Concept: Vitamins >> Classification of Vitamins

Inflammation of the tongue is due to the deficiency of:

Appears in 1 question paper
Chapter: [14.03] Vitamins
Concept: Vitamins >> Important Vitamins, Their Sources and Their Deficiency Diseases

Which of the following vitamins is the vitamin of alicyclic series?

(A) Vitamin C

(B) Vitamin K

(C) Vitamin B

(D) Vitamin A

Appears in 1 question paper
Chapter: [14.03] Vitamins
Concept: Vitamins >> Important Vitamins, Their Sources and Their Deficiency Diseases

What are the sources of Vitamin C and Vitamin K?

Appears in 1 question paper
Chapter: [14.03] Vitamins
Concept: Vitamins >> Classification of Vitamins

Which of the following NOT present in DNA?

(a)  adenine                        

(b) Guanine

(c) Thymine

(d) Uracil

Appears in 1 question paper
Chapter: [14.04] Nucleic Acids
Concept: Introduction of Nucleic Acids

What are three types of RNA molecules which perform different functions?

Appears in 1 question paper
Chapter: [14.04] Nucleic Acids
Concept: Introduction of Nucleic Acids

Draw the structures of adenine.

Appears in 1 question paper
Chapter: [14.04] Nucleic Acids
Concept: Introduction of Nucleic Acids

Mention two important functions of nucleic acids.

Appears in 1 question paper
Chapter: [14.04] Nucleic Acids
Concept: Introduction of Nucleic Acids

How are polythene and neoprene prepared?

Appears in 1 question paper
Chapter: [15] Polymers
Concept: Types of Polymerisation Reactions - Addition Polymerisation or Chain Growth Polymerisation

Amongst the followings, identify a copolymer?

(a) Orion                            

(b) PVC

(c) PHBV

(d) Teflon

Appears in 1 question paper
Chapter: [15] Polymers
Concept: Types of Polymerisation Reactions - Copolymerisation

0.1 mole of Buckminster fullerene contains how many kg of carbon? [Atomic mass of carbon = 12]

Appears in 1 question paper
Chapter: [15] Polymers
Concept: Introduction to Polymers >> Classification of Polymers Based on Source

What is natural rubber?

(A) Cis-1,4-polyisoprene

(B) Neoprene

(C) Trans-1,4-polyisoprene

(D) Butyl rubber

Appears in 1 question paper
Chapter: [15] Polymers
Concept: Types of Polymerisation Reactions - Rubber

Which of the following is polyamide ?

(a) Teflon

(b) Nylon  6,6

(c) Terylene

(d) Bakelite

 

Appears in 1 question paper
Chapter: [15] Polymers
Concept: Introduction to Polymers >> Nylon 66

Write any ‘two’ uses of terylene.

Appears in 1 question paper
Chapter: [15] Polymers
Concept: Introduction to Polymers >> Some Important Polymers

Write any ‘two’ uses of terylene.

Appears in 1 question paper
Chapter: [15] Introduction to Polymer Chemistry
Concept: Introduction to Polymers >> Some Important Polymers

Write the reactions involved in the preparation of Orlon

Appears in 1 question paper
Chapter: [15] Polymers
Concept: Introduction to Polymers >> Preparation of Polyacrylonitrile

Write the reactions involved in the preparation of  PVC

Appears in 1 question paper
Chapter: [15] Introduction to Polymer Chemistry
Concept: Introduction to Polymers >> Some Important Polymers
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