National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
B. IMMUNIZATION

Ans 2:

Class : Class 8
B is the correct option

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Subject :NSO    Class : Class 3

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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 5

Four burning sticks are placed into different containers P, Q, R and S containing oxygen, carbon dioxide, nitrogen and air respectively. The observations are then noted down. Which of these observations is correct?

--------Container------------------Observation
AP------------------The glowing stick is extinguished immediately.
BQ------------------The glowing stick bursts into flame.
CR------------------The glowing stick bursts into flame.
DS------------------The glowing stick continues to glow for a while.


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Subject :NSO    Class : Class 7

Mr Roshan, class 11 teacher took various solutions of equal strength and mixed them in different test tubes as shown in the figure.

He asked the students to find the incorrect statement about the given experiment.

ABlue litmus solution turns red in test tubes 1 and 3.
BTurmeric solution turns red in test tube 1.
CChina rose indicator turns dark pink in test tubes 2 and 4.
DPhenolphthalein remains colourless in test tubes 2 and 4.


the answer given at A does not seem correct as solution in 1 will become basic.does any one have any comments?

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
c

Ans 2:

Class : Class 3
C

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