NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1841 - 1848 of 2029
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Question number: 1841
Question
Vapour Density of air is 14.4 and nitrogen is.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 03 |
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| b. | 14.3 |
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| c. | 14.00 |
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| d. | All of the above |
|
Question number: 1842
» Chemistry » Sorting Materials into Groups
Question
Size of solute particles has ________ relation with its solubility.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | No |
|
| b. | Not defined |
|
| c. | Direct |
|
| d. | Inverse |
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Question number: 1843
» Chemistry » Sorting Materials into Groups
Question
We can separate solid + solid mixture by
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Hand picking |
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| b. | Sedimentation |
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| c. | Winnowing |
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| d. | Both a. and c. are correct |
|
Question number: 1844
Question
Which of the following is vapours form?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Mist |
|
| b. | Frost |
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| c. | Fog |
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| d. | All a. , b. and c. are correct |
|
Question number: 1845
Question
Smoke and dust particles causes.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Brain Problem |
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| b. | Respiratory Problem |
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| c. | None of the above |
|
| d. | Question does not provide sufficient data or is vague |
|
Question number: 1846
» Chemistry » Sorting Materials into Groups
Question
If a substance is completely sinks in water then its relative density will be ________ one.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Equal to |
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| b. | Greater than |
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| c. | Less than |
|
| d. | None of the above |
|
Question number: 1847
» Chemistry » Sorting Materials into Groups
Question
A substance is having a Relative Density of 0.28. It will
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Partially sink in water |
|
| b. | Sink in water |
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| c. | Partially float on water |
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| d. | Float on water |
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Question number: 1848
Question
After Nitrogen, ________ is the most abundant gas in the atmosphere.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Nitrogen |
|
| b. | Carbon di-oxide |
|
| c. | Oxygen |
|
| d. | All of the above |
|