Subject :NSO Class : Class 5
Subject :NSO Class : Class 8
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Subject :NSO Class : Class 7
Ans 1:
Class : Class 9
The byproduct of electric bulb is heat but the effect of heat in bulb is not something because of which the bulb glows.
Ans 8:
Class : Class 8
The correct answer is d) because everything else works on heating but what is the object in option d)
Ans 12:
Class : Class 10
I think it is a heater or a truck or car battery. It must be either of these two. Heater works on heating effect of electricity but battery does
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Subject :NSO Class : Class 1
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 3
Ans 6:
Class : Class 7
The correct ans. is 'b'... looks like these sof people aren't solving these themselves before asking these in the test. What is their reason for this choice¿
Ans 9:
Class : Class 7
correct answer is B because in A there a to left turns so she can collide into house
Ans 23:
Class : Class 6
The correct answer is B.I think SOF people aren't solving these themselves before asking this in the test. how can route A is possible. It is wrong .
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Subject :NSO Class : Class 1
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 7
Study the given Venn diagram carefully.
Identify 1, 2 and 3.
| 1 | 2 | 3 | |
| A | Do not React with metals | react with litmus | Do not react with carbonates |
| B | Are sour in taste | React with carbonates | Are soapy to touch |
| C | Have OH– > H+ | Have H+ OH– = H+ | Have OH– H+ > OH– |
| D | React with carbonates to form CO2 gas | can be identified by using indicators | turn china rose indicator green |
Ans 10:
Class : Class 7
Actually venn diagram shows the propertied of the substances, not the substances themselves. So, it should be D. Admin is right.
Ans 12:
Class : Class 8
Venn diagram shows proportion of acid and base to be equal for 3 i.e. salt then how can you say china rose indicator will turn green i.e. salt is basic in nature, i.e. 3rd part of option D which is correct as per admin. Please clarify..
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Subject :NSO Class : Class 1

(B)
(D) 