National Science Olympiad Forum By SOF Olympiad Trainer - Page 408

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 8
yes your are right

Ans 2:

Class : Class 9

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
Sugar ,salt and washing powder are soluble in water while sand ,chalk powder and saw dust are insoluble in water.

Ans 2:

Class : Class 6
is washing powder soluble

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
idk

Ans 2:

Class : Class 9
idk these type of questions because i am not able to understand what animal they are talking

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 4

Ans 2:

Class : Class 3
IDK

Ans 3:

Class : Class 3
Wouldn't 'A' be a short circuit?

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8
I don't think A will be a short circuit, as the current is flowing through an electric appliance (the bulb in this case), while a short circuit is when positive and negative terminals are connected directly. But I think that A is the correct answer as in all the other circuits, the circuit is open.

Ans 6:

Class : Class 8
so confusingggg

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9

Ans 2:

Class : Class 7

Ans 3:

Class : Class 3

Ans 4:

Class : Class 6
BAD QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I AM ANGRY WITH U

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6
clay boat can float on water so answer should be C (steel).

Ans 3:

Class : Class 7
clay will always sink in water whether it is any clay pot or clay boat etc

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
can you explain me

Ans 2:

Class : Class 7

Ans 3:

Class : Class 8

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6

Ans 6:

Class : Class 8

Ans 7:

Class : Class 10

Ans 8:

Class : Class 7
Easyyyyyyyyyyyyyyyy

Ans 9:

Class : Class 7

Ans 10:

Class : Class 6

Ans 11:

Class : Class 6

Ans 12:

Class : Class 8

Ans 13:

Class : Class 6
Please explain the answer

Ans 14:

Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
if we remove metal wont it turn blue again ?

Ans 2:

Class : Class 9
The answer is D Chemical and Irreversible

Ans 3:

Class : Class 8
answers abcd

Ans 4:

Class : Class 7
guys logically if we take a protein sample and then after mixing it if we extract it the color gets reversed something with metal

Ans 5:

Class : Class 6
The answer is D as even if we move the metal the colour of the solution won't change.

Ans 6:

Class : Class 10

Ans 7:

Class : Class 6
No, missed it by some the properties of the metal mix with the solution. So according to me it is D which is the right answer

Ans 8:

Class : Class 8
If we remove the metallic piece the solution's color won't change.So,Therefore it is an irreversable change and as it has been caused by Chemical Reaction of Metal and Copper Sulphate.So,Answer is D

Ans 9:

Class : Class 10

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