NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1964 - 1971 of 2028
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Question number: 1964
» Chemistry » Synthetic Fibers and Plastics
Question
Which of following plastic product that can be remoulded?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Bakelite |
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| b. | Polycot |
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| c. | Polythene |
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| d. | Melamine |
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Question number: 1965
» Chemistry » Synthetic Fibers and Plastics
Question
Which of the following part of cottonplant given cotton balls?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Flower |
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| b. | Seed |
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| c. | Leaf |
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| d. | Fruit |
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Question number: 1966
» Chemistry » Pollution of Air and Water
Question
Inhalation of carbon monoxide which is emitted by automobiles prevents oxygen transport to body tissues by?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Forming a stable compound with haemoglobin |
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| b. | Destroying haemoglobin |
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| c. | Obstructing the reaction of oxygen with haemoglobin |
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| d. | Changing oxygen |
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Question number: 1967
» Chemistry » Synthetic Fibers and Plastics
Question
The monomer of polystyrene is?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
|
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| b. |
|
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| c. |
|
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| d. |
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Question number: 1968
» Chemistry » Pollution of Air and Water
Question
In which of the following catalytic converters are used?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Dairy farms |
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| b. | Automobiles |
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| c. | Poultry Farms |
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| d. | Wind mills |
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Question number: 1969
» Chemistry » Pollution of Air and Water
Question
Name the water purification method that does not kill the microorganisms?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Chlorination |
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| b. | Distillation |
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| c. | Filtration |
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| d. | Boiling |
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Question number: 1970
» Chemistry » Synthetic Fibers and Plastics
Question
Jute fibre is obtained from the ________part of jute plant?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Stem |
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| b. | Seeds |
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| c. | Roots |
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| d. | Leaves |
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Question number: 1971
» Chemistry » Pollution of Air and Water
Question
If the global warming or greenhouse effect remains unchecked, it alter?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Sea levels |
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| b. | Rainfall |
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| c. | Ozone Layer |
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| d. | All a. , b. and c. are correct |
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