Subject :NSO Class : Class 3
. It is common in Kashmir and
Subject :NSO Class : Class 7
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 5
Ans 1:
Class : Class 9
it needs to be sedimentation and decantation because the insoluble material present in the liquid is quite heavy
you only perform filtration when the particles float over the surface of the water
Ans 3:
Class : Class 5
Ya, filtration can also remove insoluble impurities but in this case sedimentation and decanation is more appropriate answer.
Ans 5:
Class : Class 5
sedimentation and decantation is the answer .
but filtration can not come because we can see in the picture itself that the particles are big ,that's why sedimentation and decantation .
if the particles are small but yet insoluble , then only it is filtration .
I hope that you understood.
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 8
Ans 6:
Class : Class 8
Hi, the statement 2 is true but just tells about the type type combustion to which the reaction given in statement belong. it does not tell about actual cause of burning of phosphorus in air at room temperature. the reason for statement 1 is that phosphorus is a highly reactive element that's why burns in air at room temperature.
Ans 8:
Class : Class 8
the soultion is wrong beacuse the literal defination of spontaneous combustion tells us that it happens at room temprature without application of heat by external source
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Subject :NSO Class : Class 6
Ans 2:
Class : Class 10
I got the question with the options in my laptop. For those who did not get the options : it is the website's fault
Ans 3:
Class : Class 10
They did not give the options on my iPad so I couldn't see which was the correct ans. something needs to be done about this problem.
Ans 5:
Class : Class 10
They did not give options so that is why it went wrong. these kind of incidents happen very frequently in SOF
Ans 17:
Ans 18:
Class : Class 6
they MUST and SHOULD be more CAREFUL. No options??? Then, how should we answer their question??? they take no actions! look:-a person has commented a year ago but?NO RESPONSE
Ans 20:
Class : Class 6
The shadow will be whole black as the book is an opaque object and will not allow any light to pass through it so on the screen it will form a shadow. And the rest that is the ring, no light will reach it thus how can its shadow be formed?
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Subject :NSO Class : Class 4
Ans 21:
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Subject :NSO Class : Class 3
