National Science Olympiad Forum By SOF Olympiad Trainer - Page 299

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
Copper are used as connecting wires because copperIs the second best conductor of electricity and it is Very cheap.

Ans 2:

Class : Class 8
its not 'prob' it is 'probe' lol

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 7
but no buts

Ans 3:

Class : Class 3

Ans 4:

Class : Class 8

Ans 5:

Class : Class 6

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
i guess c

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
i think it should be 4

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
Isn't C right? Calcium chloride is a dehydrating agent, it removes water vapour from air , no water means no rust. and in the statement it says "cause there is no H2O OR O2 it will not rust"

Ans 2:

Class : Class 10
does none of these mean none of the options are correct or none of the statements are correct?

Ans 3:

Class : Class 8

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