NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1934 - 1940 of 2000
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Question number: 1934
» Chemistry » Structure of the Atom
Question
What does the valency ‘say’ about?
Choices
Choice (4) | Response | |
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a. | The combining capacity of an element |
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b. | The atomicity of an element |
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c. | The oxidation number of an element |
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d. | Question does not provide sufficient data or is vague |
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Question number: 1935
» Biology » Improvement in Food Resources
Question
Match the following.
List-Ⅰ (Column I) | List-Ⅱ (Column II) |
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(A) Agar-agar gel | (i) Production of alcohol |
(B) Fermentation | (ii) Undifferentiated mass of cells |
(C) Horticulture | (iii) Used to grow callus |
(D) Callus | (iv) Recreational values |
Choices
Choice (4) | Response | |
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a. |
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b. |
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c. |
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d. |
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Question number: 1936
» Chemistry » The Nature of Matter
Question
Ice-cream belongs to which type of category?
Choices
Choice (4) | Response | |
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a. | Emulsion |
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b. | Suspension |
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c. | Element |
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d. | Solution |
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Question number: 1937
» Chemistry » Structure of the Atom
Question
Which of the following pairs are known as isotopes?
Choices
Choice (4) | Response | |
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a. |
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b. |
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c. | Diamond and graphite |
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d. |
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Question number: 1938
Question number: 1939
» Chemistry » Atoms & Molecules
Question
Calculate the mass of gram atom of oxygen?
Choices
Choice (4) | Response | |
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a. |
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c. |
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d. |
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Question number: 1940
» Chemistry » Structure of the Atom
Question
Positive ions are formed from neutral atoms by the loss of?
Choices
Choice (4) | Response | |
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a. | Nuclear charge |
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b. | Protons |
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c. | Electrons |
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d. | Neutrons |
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