National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
sea weed and bird only are in line with the laser. we can see only these.

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Subject :NSO    Class : Class 8

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Class : Class 8
Coal is a fuel with high carbon content derived from destructive distillation of coal.

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Subject :NSO    Class : Class 8

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Class : Class 8
correct answer is D because in the reactivity series,copper lies below hydrogen which means that hydrogen cannot be displaced by copper from its salt solution.

Ans 2:

Class : Class 8
The correct option is D. Because if you see the reactivity table copper is placed below hydrogen.So it is not more reactive than hydrogen and cannot replace it from its compound.

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
A

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
The use of electroplating is more widely seen in industries than electrolysis. Actually,decomposition of water is not so much required in industries than plating of metals.

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
The question is incomplete

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