National Science Olympiad Forum By SOF Olympiad Trainer - Page 392

User Forum

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
It should be A

Ans 2:

Class : Class 7
Yes, The answer should be A and not D

Ans 3:

Class : Class 7
tttt

Ans 4:

Class : Class 7
All options are wrong, it can't be A because cotton burns with smell of burning paper and similarly it can't be D because silk burns with an odour of charred meat.

Ans 5:

Class : Class 7

Ans 6:

Class : Class 8
silk smells of charred meat . This was the answer given even in the chapterwise question bank

Ans 7:

Class : Class 7
cotton-burning paperwool-burning hairsilk-charred meat

Post Your Answer

Subject :NSO    Class : Class 8

Post Your Answer

Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
Isn't it option a ?

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
can also be option B right?

Ans 2:

Class : Class 7
b right?

Ans 3:

Class : Class 1

Ans 4:

Class : Class 2
magnet y should attract towards magnet z cause they both have the same pole facing towards each other

Ans 5:

Class : Class 10
correct answer : D

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Current flows from positive terminal to negative terminal.... so the bulbs will glow simultaneously

Ans 2:

Class : Class 8
D is correct

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6
no this question is wrong 0_0 O_O o_o o_O

Ans 5:

Class : Class 7

Post Your Answer

Subject :NSO    Class : Class 8

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
why??????????????

Ans 3:

Class : Class 8

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6

Ans 6:

Class : Class 8
Because option a is correct as reaction takes place in all three beakersOption b is also correct as Mg is more reactive than Zn.Option c is also correct as Zn is more reactive than Ag.Option c is also correct because

Post Your Answer

Subject :NSO    Class : Class 8

Ans 1:

Class : Class 6
why????????????????

Ans 2:

Class : Class 8
speed= distance/time20=x/20so,x or distance is 400m

Ans 3:

Class : Class 6

Ans 4:

Class : Class 8
No the answer is 200 as the car is having a uniform acceleration of 1m/s².So, according to the formula s=ut 1/2at², the distance covered (s) = 0 1/2at²=1/2x1x400=200m.

Ans 5:

Class : Class 9
Correct answer is D

Ans 6:

Class : Class 8
No the answer is 200 as the car is having a uniform acceleration of 1m/s^2.So, according to the formula s=ut 1/2at^2, the distance covered (s) = 0 1/2at^2=1/2x1x400=200m.

Ans 7:

Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 8

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 6
I think it is none of these

Ans 3:

Class : Class 8
the answer is b if you have a doubt check the synopsis of the chapter

Ans 4:

Class : Class 8
I think the answer is A

Ans 5:

Class : Class 6
BRO THE ANSWER IS NOT B SILVER IS A CONDUCTER AND THE ONLY THINGDS WHICH ARE NOT CONDUCTER ARE WOOD AND PALSTIC SO THE ANSWER WILL BE C NOT B NOR A NOR D

Post Your Answer

Subject :NSO    Class : Class 8

Post Your Answer