National Science Olympiad Forum By SOF Olympiad Trainer - Page 82

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Subject :NSO    Class : Class 6

Read the given paragraph. Our food consists of carbohydrates, proteins, fats, vitamins and P. Carbohydrates contain carbon, hydrogen and Q. Proteins if deficient in diet can lead to R in children below 1 year of age. Deficiency of vitamin A can lead to S. Select the incorrect statement regarding P, Q, R and S.

AP can either be minerals or roughage.
BQ is oxygen.
CS can be nightblindness.
DR is pellagra.


D is correct but i felt A is also an option as roughage isnt considered a proper utrient and onlya side

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
(i) and (ii) only

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
when Q is considered as ICE and R is in liquid state. now ans is A , x-r and y-q

Ans 2:

Class : Class 4

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 6

Match column I with column II and select the correct option from the codes given below.

Column I Column II
(A) Hinge joint (i) Neck joint
(B) Gliding joint (ii) Hip joint
(C) Pivot joint (iii) Knee joint
(D) Ball and socket (iv) Wrist joint joint


A (A) - (iii), (B) - (iv), (C) - (i), (D) - (ii)
B (A) - (iv), (B) - (i), (C) - (iii), (D) - (ii)
C (A) - (i), (B) - (ii), (C) - (iv), (D) - (iii)
D (A) - (ii), (B) - (iii), (C) - (i), (D) - (iv)


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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

Read the given statements and select the correct option.
Statement 1 : When an electric current flows through a wire, it behaves like a magnet.
Statement 2 : A current carrying coil of an insulated wire wrapped around an iron nail forms an electromagnet.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1
CStatement 1 is true but statement 2 is false
DBoth statements 1 and 2 are false


how does an insulated wire form an electromagnet?

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Subject :NSO    Class : Class 10

A compound is prepared from gypsum upon heating to a temperature of 373 K and it changes back to gypsum on adding water. Which is the incorrect statement about the compound?

A The compound is used for setting fractured bones.
B The compound is called plaster of Paris which is calcium sulphate dihydrate with a formula CaSO4.2H2O.
C If heated at higher temperature, the compound becomes dehydrated and is called dead burnt plaster.
D Both (A) and (B).


option is d

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