National Science Olympiad Forum By SOF Olympiad Trainer - Page 631

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6

Ans 3:

Class : Class 8
as mass increases weigt also increses so option c

Ans 4:

Class : Class 6
i would be wrong because if you have 2 metal ball of same mass then weight would be same right

Ans 5:

Class : Class 10
Mass increase so weight increase

Ans 6:

Class : Class 7

Ans 7:

Class : Class 8

Ans 8:

Class : Class 7
Answer should be C.When mass of an object increases, weight also increases since g (9.8 m/ses-sq) is constant and Weight = Mass x g.Hence statement (iii) is correct and hence choice C is the correct choice.Please change the answer.

Ans 9:

Class : Class 9
The answer shows d but the solution says that its c. What is this? P,ease rectify SOF.

Ans 10:

Class : Class 8

Ans 11:

Class : Class 7
D

Ans 12:

Class : Class 10
Answer is C. solutions says so

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9
explain

Ans 2:

Class : Class 7

Ans 3:

Class : Class 8

Ans 4:

Class : Class 9
C

Ans 5:

Class : Class 9
C

Ans 6:

Class : Class 6
Explain

Ans 7:

Class : Class 6
C is fax which is type of visual communication

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7

Ans 3:

Class : Class 5

Ans 4:

Class : Class 7

Ans 5:

Class : Class 5

Ans 6:

Class : Class 7
I am bengali , hindi , english and malayalam . This looks pity to me !!!!!!!!!!!!!!!!!!!

Ans 7:

Class :
c

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Subject :NSO    Class : Class 8

Ans 1:

Class :
DIt reflects the red colour and absorbs rest of the colours.

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Subject :NSO    Class : Class 3

Ans 1:

Class :
I think you are right it should be D.

Ans 2:

Class : Class 9
the correct is D.

Ans 3:

Class : Class 9
You are wrong.The correct answer should be D.

Ans 4:

Class : Class 6
You are right. It should be D.

Ans 5:

Class : Class 10
d is the answer

Ans 6:

Class : Class 8
d

Ans 7:

Class : Class 8

Ans 8:

Class : Class 3
Correct answer is D

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
The correct answer is A because Bituminous is not a ore, typhoid is a water-borne disease and rest are vector-borne disease and nutcracker is an example of 2nd class lever whereas all the other are 1st class lever.

Ans 2:

Class : Class 5
I agree Areen

Ans 3:

Class : Class 6
Ans is A because bituminous is not an ore, typhoid is not a vector-borne disease and nutcracker is not a class 1 lever.

Ans 4:

Class : Class 5

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
the answer is b . this is because sun tan is temporary.

Ans 2:

Class : Class 9
answer is b

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
Nylon does not have the smell of burning hair. So the answer should be d.

Ans 2:

Class : Class 9
nylon burns with a smell of plastic, not burning hair. WTF?

Ans 3:

Class :
wool burns with smell of burning hair

Ans 4:

Class : Class 8
Nylon should neither have a smell of burning hair nor the smell of burning paper. Nylon has a celery or plastic-like cell. Hence the correct answer is D. But on the other hand when acrylic burns, it shrinks and converts into black beads. On this contrast, the correct answer will be B with respect to acrylic and D with respect to Nylon. There is definitely an error in the options of the answers!

Ans 5:

Class : Class 9
How can Nylon burn with the smell of burning hair??

Ans 6:

Class : Class 10

Ans 7:

Class : Class 9
yes the answer is D. nylon burns with a smell of celery because its a synthetic fibre.

Ans 8:

Class : Class 9
Supposed to be D

Ans 9:

Class : Class 9
IT must be D! Nylon does not burn with the smell of burning hair as it is purely synthetic and has no relation to the protein based hair.

Ans 10:

Class :
How is this possible Nylon burns with smell of hair???

Ans 11:

Class : Class 8
It should be D. Because nylon would never once burn with smell of paper in it's entire career. SOF, you gotta chnage the answer man.

Ans 12:

Class :
(D)

Ans 13:

Class : Class 8
IT SHOU BE D!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 14:

Class : Class 8
Correct answer is A

Ans 15:

Class : Class 9
wrong answerthe answer should be B

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