National Science Olympiad Forum By SOF Olympiad Trainer - Page 370

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
Answer is A Dolphin is a mammal which breaths through the lungs. Whales also have the same system Whereas, earthworm breathes through the skin.

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Subject :NSO    Class : Class 7

Read the given statements and mark the correct option.
Statement 1 : The ash produced by burning magnesium when dissolved in water turns China rose indicator dark pink.
Statement 2 : The ash formed is MgO which when dissolved in water forms an acidic solution.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.


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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 8

Read the given statements and select the correct option.
Statement 1: Petrol condenses near the top of the fractionating column while diesel oil near the middle of the column.
Statement 2: Petrol is more volatile than diesel oil.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true and statement 2 is false.
D Both statements 1 and 2 are false.


Ans 1:

Class : Class 8

Ans 2:

Class : Class 8

Ans 3:

Class : Class 8
it must be B. The altitude of condensation depends on the boiling point and not on the volatility

Ans 4:

Class : Class 8
b Is the correct ans

Ans 5:

Class : Class 8
B

Ans 6:

Class : Class 8
A

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

Ans 1:

Class :
FTX cofounder Sam Bankman-Fried has amassed $22.5 billion before turning 30 by profiting off the cryptocurrency boom – but he’s not a true believer. He just wants his wealth to survive long enough to give it all away. Read more here https://www.forbes.com/sites/stevenehrlich/2021/10/06/the-richest-under-30-in-the-world-all-thanks-to-crypto/

Ans 2:

Class : Class 5

Ans 3:

Class : Class 4
correct answer should be venus

Ans 4:

Class : Class 4
Yeah it’s Venus.

Ans 5:

Class : Class 5
Venus

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
But b is paramecium, right? And paramecium is unicellular too!

Ans 2:

Class : Class 8
The correct answer should be option A and not option B as Paramecium (Organism C) is also an unicellular organism along with Amoeba.

Ans 3:

Class : Class 8
Yes, the correct answer is both a and c as amoeba and paramecium are unicellular.

Ans 4:

Class : Class 8

Ans 5:

Class : Class 10
True! The answer should be a and c.

Ans 6:

Class : Class 9
yes...the answer should be a and c

Ans 7:

Class : Class 9
okay I know I put answer as option c but COME ON!! option b is completely wrong even solution is saying both are unicellular and capable of independent existence .

Ans 8:

Class : Class 8
No the answer b is correct because the question says incorrect and not correct

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
c

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Subject :NSO    Class : Class 8

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