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. | 227Ac89 ⇾223Fr87 | |
b. | 238U92 234Th90 | |
c. | 213Bi83 ⇾213Po84 | |
d. | 226Ra88 ⇾222Rn86 |
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 |
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 |