Fundamentals of Environmental Chemistry-Chemical Potential and Chemical Equilibria [NTA-NET (UGC-NET) Environmental Science (89)]: Questions 1 - 3 of 3

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Question 1

Appeared in Year: 2009

Question MCQ▾

Which of the transmutation does not take place by α-decay? – (December)

Choices

Choice (4)Response

a.

227Ac89223Fr87

b.

238U92 234Th90

c.

213Bi83213Po84

d.

226Ra88222Rn86

Edit

Question 2

Appeared in Year: 2020

Question MCQ▾

Chemical Composition of CFC-113 is

Choices

Choice (4)Response

a.

CF3CF2Cl2

b.

CF2ClCFCl2

c.

CFHClCFCl2

d.

CF2HCF2Cl2

Edit

Question 3

Appeared in Year: 2020

Question MCQ▾

At 1 atm pressure and 250C temperature, NO2 concentration of 80 ppb is equivalent to

Choices

Choice (4)Response

a.

150.4 µg/m3

b.

240 µg/m3

c.

40 µg/m3

d.

160 µg/m3

Edit