Subject :NSO Class : Class 9
Subject :NSO Class : Class 9
Post Your Answer
Subject :NSO Class : Class 9
The given apparatus can be used to show the diffusion of gases. Which pair of gases X and Y would cause no movement of the water?
| X | Y | |
| A | C2H4 | C2H6 |
| B | C2H4 | N2 |
| C | CO2 | C2H6 |
| D | CO | NO2 |
pl explain
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 9
Post Your Answer
Subject :NSO Class : Class 9
Post Your Answer
Subject :NSO Class : Class 9
Post Your Answer
Subject :NSO Class : Class 9
Post Your Answer
Subject :NSO Class : Class 9
Post Your Answer
Subject :NSO Class : Class 8
Ans 1:
Class : Class 8
The options given here are a plastic scale,a woollen cloth, an inflated balloon and a COPPER rod, not a GLASS rod. How can the options appear differently for others, since many people here are saying that there is glass rod involved? Also, plastic is an insulator of electricity, so ideally it wouldn't acquire any charge, right? SOF should give a solution to this problem.
Ans 2:
Class : Class 8
This is wrong, yet nothing has been done to fix it. It has been discovered to be wrong FOUR YEARS ago!
Ans 3:
Class : Class 9
glass rod when rubbed with fur, it gives electrons to fur and becomes positively charged
Ans 6:
Class : Class 9
When rubbed with fur, glass will become negatively charged. However if silk is used instead of fur, glass will acquire a positive charge.