National Science Olympiad Forum By SOF Olympiad Trainer - Page 579

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
Can someone pls explain ?

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
b

Ans 2:

Class : Class 4

Ans 3: (Master Answer)

Class : Class 1

The correct answer is B


Ans 4:

Class : Class 4
bbbbbbbbbbbbbbbbbbbbbbbbbb

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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 10
bruh

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7

Ans 4:

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

Ans 5:

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

Ans 6:

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

Ans 7:

Class : Class 8

Ans 8:

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 9:

Class : Class 6
answer should be d

Ans 10:

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

Ans 11:

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 12:

Class : Class 8

Ans 13:

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

Ans 14:

Class : Class 6
D

Ans 15:

Class : Class 7
c is correct not b

Ans 16:

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

Ans 17:

Class : Class 9
answer should be 'd'

Ans 18:

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 19:

Class : Class 8
answer is Only

Ans 20:

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

Ans 21:

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

Ans 22:

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

Ans 23:

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 24:

Class : Class 7
B is the answer

Ans 25:

Class : Class 7
first option is to wrong

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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 10

Ans 2:

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 3:

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

Ans 4:

Class : Class 8
Chromium is more expensive

Ans 5:

Class : Class 9
B

Ans 6:

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

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 8
chromium is expensive . so answer should be B

Ans 9:

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 10:

Class : Class 8
Correct answer is B

Ans 11:

Class : Class 8

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