Fundamentals of Environmental Chemistry [NTA-NET (UGC-NET) Environmental Science (89)]: Questions 15 - 19 of 62
Choose Programs:
📹 Video Course 2024 (244 Lectures [112 hrs : 11 mins]): Offline Support
Rs. 630.00 -OR-
1 Month Validity (Multiple Devices)
Preview All LecturesDetails
⏳ 🎯 Online Tests (6 Tests [100 questions each]): NTA Pattern, Analytics & Explanations
Rs. 1200.00 -OR-
3 Year Validity (Multiple Devices)
Sample TestsDetailsSee Demo
🎓 Study Material (902 Notes): 2024-2025 Syllabus
Rs. 850.00 -OR-
3 Year Validity (Multiple Devices)
Topic-wise Notes & SampleDetails
🎯 1711 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)
Rs. 500.00 -OR-
3 Year Validity (Multiple Devices)
CoverageDetailsSample Explanation
Help me Choose & Register (Watch Video) Already Subscribed?
Question 15
Appeared in Year: 2017
Question MCQ▾
Which of the following statements is true for an ideal dilute solution? (November)
Choices
Choice (4) | Response | |
---|---|---|
a. | Solute obeys Henry՚s law and solvent obeys Raoult՚s law | |
b. | Solute obeys Raoult՚s law and solvent obeys Henry՚s law | |
c. | Solute and solvent both obey Henry՚s law | |
d. | Solute and solvent both obey Raoult՚s law |
Question 16
Appeared in Year: 2017
Question MCQ▾
Which of the following is not a heavy metal?
Choices
Choice (4) | Response | |
---|---|---|
a. | Aluminum | |
b. | Bismuth | |
c. | Mercury | |
d. | Lead |
Question 17
Appeared in Year: 2016
Question MCQ▾
Elements that cycle in the environment and that also have a gaseous phase at some point in their cycle include which of the following? (July)
i. Phosphorus
ii. Sulphur
iii. Carbon
Choose the correct answer:
Choices
Choice (4) | Response | |
---|---|---|
a. | i and iii only | |
b. | ii only | |
c. | ii and iii only | |
d. | i only |
Question 18
Appeared in Year: 2015
Question MCQ▾
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. | Radiance | |
b. | Exitance | |
c. | Radiant flux | |
d. | Irradiance |
Question 19
Appeared in Year: 2017
Question MCQ▾
The half-life period of a radioactive substance is 32 h. How much time it would take for its 75% disintegration?
Choices
Choice (4) | Response | |
---|---|---|
a. | 64 h | |
b. | 96 h | |
c. | 128 h | |
d. | 16 h |