Chemistry [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 86 - 95 of 208
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Question 86
Question MCQ▾
How many molecules of water and oxygen atoms are present in 9g of water?
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Choice (4) | Response | |
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a. | ||
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d. |
Question 87
Question MCQ▾
How many number of moles does liters of contain under normal conditions?
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Choice (4) | Response | |
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Question 88
Question MCQ▾
The total number of moles of nitrogen in 7 g of nitrogen is ________.
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Choice (4) | Response | |
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Question 89
Question MCQ▾
Which one is radioactive isotope of hydrogen?
Choices
Choice (4) | Response | |
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a. | Tritium | |
b. | Deuterium | |
c. | Protium | |
d. | Question does not provide sufficient data or is vague |
Question 90
Question 91
Question MCQ▾
How many moles of oxygen atoms are present in two moles of acetic acid?
Choices
Choice (4) | Response | |
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a. | 3 | |
b. | 1 | |
c. | 2 | |
d. | 4 |
Question 92
Question 93
Question 94
Question MCQ▾
A sample of an oxide of nitrogen is found to contain nitrogen. What is its empirical formula?
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Choice (4) | Response | |
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d. |