National Science Olympiad Forum By SOF Olympiad Trainer - Page 580

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is C

Ans 2:

Class : Class 5
ANS C

Ans 3:

Class : Class 5
ans is c.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
Bruhhhh this is so easy wish questions like these were on NSO

Ans 2:

Class : Class 6
but 1st option is incorrect?????????????????????

Ans 3:

Class : Class 6
The answer should be B as it is written in the synopsis that cream is separated from milk by centrifugation.

Ans 4:

Class : Class 7
c is correct not b

Ans 5:

Class : Class 6
answer should be d

Ans 6:

Class : Class 8

Ans 7:

Class : Class 9
answer should be 'd'

Ans 8:

Class : Class 6
D

Ans 9:

Class : Class 7
first option is to wrong

Ans 10:

Class : Class 7
II,III and IV are correct, none of options are correct and in I it should be sieving/handpicking

Ans 11:

Class : Class 10
bruh

Ans 12:

Class : Class 7
B is the answer

Ans 13:

Class : Class 8

Ans 14:

Class : Class 6
(ii) and(iii) are correct whereas the answer to (i) is handpicking and the answer for (iv) is winnowing

Ans 15:

Class : Class 6
Mud and water can be separated by loading, sedimentation, decantation, AND filtration.So, answer should be B

Ans 16:

Class : Class 7

Ans 17:

Class : Class 6
the question is wrong all the options are correct. it is given in the synopsis that centrifugation is used to separate cream from milk.

Ans 18:

Class : Class 9
Larger solid particles are separated from smaller ones by sieving

Ans 19:

Class : Class 10
dheeraj, it is alking about that the statement is correct.mud and water can be separated by many ways but it is asking nly about statemnt(whether the mentioned thing in "statement are crrect r not

Ans 20:

Class : Class 6
BRUHHHHHH i got 20/20 in all tests this is more than easy like NSO

Ans 21:

Class : Class 7

Ans 22:

Class : Class 6
II, III AND IV are correct. There is no option like II, III AND IV so the coorect answer is B which includes II AND IV. Larger particles can be seperated from smaller particles by sieving. There is a error in the question

Ans 23:

Class : Class 7
Neither of the options is correct. Even solution is not explaining it well. Kindly tell the correct answer because I think that III and IV are correct.

Ans 24:

Class : Class 7
i think all are correct, because I am the topper.........

Ans 25:

Class : Class 8
answer is Only

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
translucent bcz the light is passing partially from the window

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
It means that in place of electroplating the object with some other metal like silver ,it is cheaper to electroplate it with chromium

Ans 2:

Class : Class 8
In the SOF book, Option B is correct. How come here Option D?

Ans 3:

Class : Class 8
chromium is not cheapif it is cheap then the whole material can be made of chromium, why do they electroplate it if its cheapoption D is wrong and option B is correct

Ans 4:

Class : Class 10

Ans 5:

Class : Class 8
Chromium is more expensive

Ans 6:

Class : Class 8
Correct answer is B

Ans 7:

Class : Class 9
the people of SOF should be wise but they are acting like dummies.. Its like they don't know that CHROMIUM IS AN EXPENSIVE METAL. IF IT WAS CHEAP WHY WOULD ITEMS NEED TO BE ELECTROPLATED!! BECAUSE OF THIS MISTAKE I LOST A MARK AND IN THE 1ST QUESTION TOO BECAUSE OF THEIR HORRIBLE MISTAKES.. I AM VERY ANGRY NOW.. I MEAN LIKE 2 MISTAKES IN 1 TEST?!?!.. REALLY?!?

Ans 8:

Class : Class 9
B

Ans 9:

Class : Class 9
chromium is expensive . so answer should be B

Ans 10:

Class : Class 8
CHROMIUM IS AN EXPENSIVE METAL SO WHOLE OBJECT COULD NOT BE MADE OF IT. SO CORRECT ANSWER SHOULD BE B.

Ans 11:

Class : Class 9

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Subject :NSO    Class : Class 10

Ans 1:

Class : Class 5
a

Ans 2:

Class : Class 5
C.Both

Ans 3:

Class : Class 5
The chicken was born first. Because the formation of egg shell relies upon a protein found only in the chicken's ovaries. Hope you found the answer to your question

Ans 4:

Class : Class 4
bOTH

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
Correct option is A

Ans 3:

Class : Class 8
Ans.- (A) Gravity always accelerates any body's speed when it is coming towards the earth. g = 9.8 m/s^2

Ans 4:

Class : Class 8
Correct option is A

Ans 5:

Class : Class 8

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Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1

The correct answer is A


Ans 2:

Class : Class 7

Ans 3:

Class : Class 7

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Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1

The correct answer is B

The gas having lowest boiling point i.e., highly volatile will be distilled out first and the gas having highest boiling point i.e., least volatile will be distilled out at the last. So, the correct order of gases distilling out is neon, nitrogen, oxygen, krypton.


Ans 2:

Class : Class 9
Option b

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

The correct answer is B

Here forces X, Y and Z are Friction, Magnetic force and Gravitational force. It is friction which opposes or slows down moving objects


Ans 2:

Class : Class 4

Ans 3:

Class : Class 4

Ans 4:

Class : Class 5
Can't understand question.....

Ans 5:

Class : Class 3

Ans 6:

Class : Class 7
not understanded

Ans 7:

Class : Class 3

Ans 8:

Class : Class 3
I don't understand this question..!!

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