Fundamentals of Environmental Chemistry (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 5 of 19

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Question number: 1

» Fundamentals of Environmental Chemistry » Radionuclides

Appeared in Year: 2015

MCQ▾

Question

The radiation flux emitted per unit solid angle in a specified direction by a unit area of source is called (December)

Choices

Choice (4) Response

a.

Exitance

b.

Radiance

c.

Radiant flux

d.

Irradiance

Question number: 2

» Fundamentals of Environmental Chemistry » Stochiometry

Appeared in Year: 2015

MCQ▾

Question

Stoichiometric calculations are based on: (June)

Choices

Choice (4) Response

a.

Moles

b.

Loss of mass

c.

Atomic number

d.

Atomic weight

Question number: 3

» Fundamentals of Environmental Chemistry » Unsaturated and Saturated Hydrocarbons

Appeared in Year: 2015

MCQ▾

Question

Consider the following four statement about benzo [a] pyrene: (December)

(1) It is a group 1 carcinogen

(2) It is a polycyclic aromatic hydrocarbon

(3) Its molecular formula is C20H12

(4) It has four benzene rings

Choices

Choice (4) Response

a.

(1), (2) and (3) only

b.

(1), (2), (3) and (4)

c.

(2), (3) and (4) only

d.

(1) and (2) only

Question number: 4

» Fundamentals of Environmental Chemistry » Stochiometry

Appeared in Year: 2015

MCQ▾

Question

Stoichiometric calculations are based on (June)

Choices

Choice (4) Response

a.

Loss of mass

b.

Atomic number

c.

Moles

d.

Atomic weight

Question number: 5

» Fundamentals of Environmental Chemistry » Unsaturated and Saturated Hydrocarbons

Appeared in Year: 2015

Match List-Ⅰ List-Ⅱ▾

Question

Match the List-I with List-II. Identify the correct answer from the codes given below the lists: (June)
List-Ⅰ (Halocarbons) List-Ⅱ (Atmospheric Residence Time)

(A)

CF3Br

(i)

~ 50, 000 years

(B)

CF4

(ii)

~ 50 years

(C)

CF4Cl2

(iii)

~ 50 years

(D)

CFCl3

(iv)

~ 102 years

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (ii)
  • (i)
  • (iv)
  • (iii)

b.

  • (i)
  • (iv)
  • (iii)
  • (ii)

c.

  • (iv)
  • (iii)
  • (ii)
  • (i)

d.

  • (iii)
  • (i)
  • (iv)
  • (iii)

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