National Science Olympiad Forum By SOF Olympiad Trainer - Page 563

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 2:

Class : Class 2
The correct answer is ' c ' option

Ans 3:

Class : Class 7
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Ans 4:

Class : Class 5

Ans 5:

Class : Class 3
Shreshta the ans is not b coz in b precipitation is not happening condesation is happening that is why ans is c

Ans 6:

Class : Class 7
C it's C

Ans 7:

Class : Class 3
C

Ans 8:

Class : Class 4
PLEASE TELL THE REASON

Ans 9:

Class : Class 4
the answer is c but question is tricky

Ans 10:

Class : Class 5
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Ans 11:

Class : Class 3
I'm a simple girl who loves having fun chatting and meeting new people. You will always find me smiling and happy because nothing disturb me!

Ans 12:

Class : Class 6

Ans 13:

Class : Class 7
CCCthe answer is C the ones who posted please see it is C

Ans 14:

Class : Class 5
it is c dont get confused with b

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
because our body contains minerals like iron and has a large quantity of un - distilled water

Ans 2:

Class : Class 6
Our body is made of mostly made of impure water which is a good conductor of electricity. Our body also has a lot of metallic minerals like iron which conduct electricity.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
because our body contains minerals like iron and has a large quantity of un - distilled water

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
because our body contains minerals like iron and has a large quantity of un - distilled water

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Subject :NSO    Class : Class 6

Which of the following statements are correct?
(i) Human body is a good conductor of electricity.
(ii) The air gap surrounding an electric circuit acts as a conductor.
(iii) Silver conducts electricity better than any other metal.
(iv) When electricity lights up a bulb, no heat is produced.

A (i) and (ii)
B (iii) and (iv)
C (i) and (iii)
D (ii) and (iii)


Can someone explain how the human body is a good conductor of electricity?

Ans 1:

Class : Class 7
IDK but I think that I did not read the options properly

Ans 2:

Class : Class 6
because our body contains minerals like iron and has a large quantity of un - distilled water

Ans 3:

Class : Class 6
Answer (C) is correct because our body is a good conductor of electricity and it has even been mentioned in the synopsis. Now, that means that (i) is correct so automatically B and D get canceled. The air in no form acts as a conductor and is an insulator. So C is also canceled. This leaves us with our final aswer A.

Ans 4:

Class : Class 6
actually our human body consists 70% of water and if we touch electricity they are conducted through our body to either to another person or to any metal or to directly the ground.

Ans 5:

Class : Class 8
CORRECT ANS IS D

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Subject :NSO    Class : Class 6

Label the dry cell in the correct order.


A (i) Carbon and Manganese dioxide mixture, (ii) Carbon rod, (iii) Ammonium chloride
B (i) Carbon rod, (ii) Ammonium chloride, (iii) Zinc container
C (i) Ammonium chloride, (ii) Zinc container, (iii) Carbon rod
D (i) Zinc container, (ii) Carbon rod, (iii) Carbon and Manganese dioxide mixture


The correct answer is C as the part labeled (i) is ammonium chloride, (ii) is zinc container and (iii) is carbon rod.

Ans 1:

Class : Class 9
c is the only correct ans because in a zinc carbon dry cell zinc container is the negative terminal of the cell and carbon is the positive terminal of the cell and we need a electrolyte to convert chemical energy into electrical energy i.e. ammonium chloride.

Ans 2:

Class : Class 6
yes

Ans 3:

Class : Class 6

Ans 4:

Class : Class 3
All answers are wrong - even 'D' and 'C'. 'C' would, however, be right if the line for '(ii)' was a little shorter.

Ans 5:

Class : Class 7
the answer is c as (iii) is a carbon rod and only option c has that

Ans 6:

Class : Class 10
D is the correct answer but I have no idea why is it C??

Ans 7:

Class : Class 7

Ans 8:

Class : Class 6

Ans 9:

Class : Class 8
The labelling lines are very confusing

Ans 10:

Class : Class 6
I was dumb enough to not read the order that is why I got it wrong.

Ans 11:

Class : Class 6
Actually, none of the answer is correct. IN option D they changed the order

Ans 12:

Class : Class 7
ALL THE OPTIONS ARE WRONG , EVEN OPTION (C)

Ans 13:

Class : Class 9
I COULD NOT UNDERSTAND ??

Ans 14:

Class : Class 7

Ans 15:

Class : Class 7

Ans 16:

Class : Class 3
ANS is D!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 17:

Class : Class 8
I think D is correct

Ans 18:

Class : Class 8
D is the correct answer

Ans 19:

Class : Class 7

Ans 20:

Class : Class 6
actually none of the answers are correct

Ans 21:

Class : Class 7

Ans 22:

Class : Class 6

Ans 23:

Class : Class 10

Ans 24:

Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
I think B is the correct answer

Ans 2:

Class : Class 8
B is the correct answer

Ans 3:

Class : Class 8
B is the correct answer

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
yes because h is sepal but for c option g is the ovule and that are the only tiny eggs

Ans 2:

Class : Class 7

Ans 3:

Class : Class 6
d

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is B because Iron rod does not break when hit and it can't be stretched, rubbber band does not break when hit but it can be stretched, ceramic tile breaks when hit but does not allow light to pass through, and spectacle lens break when hit and allow light to pass through.

Ans 2:

Class : Class 10
the widow pane would be elastic

Ans 3:

Class : Class 7
Yes AREEN , THE ANSWER IS B

Ans 4:

Class : Class 7
Yes AREEN , THE ANSWER IS B

Ans 5:

Class : Class 9
b easy

Ans 6:

Class : Class 5

Ans 7:

Class : Class 7
very very very easy answer is B

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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