National Science Olympiad Forum By SOF Olympiad Trainer - Page 480

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
niten mohan : initially the reaction is neutral when lemon juice is added to magnesium hydroxide but if we kkep on adding more and more lemon juice one point will come when all the magnesium hydroxide will be neutrialised and the extra lemon juice will result acidic solution at the end. Ex : 25ml Mg(OH)2 35ml citric acid=acidic solution because 10 ml of extra citric acid.

Ans 2:

Class : Class 2
when the resulting solution is neutral why is point 2- It turns blue litmus red,correct ?

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 1

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 5

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 2

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 3

Ans 2:

Class : Class 6
D

Ans 3:

Class : Class 4

Ans 4:

Class : Class 4
D

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
83 will be in III

Ans 2:

Class : Class 4

Ans 3:

Class : Class 7
answer is (A)

Ans 4:

Class : Class 4
B

Ans 5:

Class : Class 6

Ans 6:

Class : Class 7
Answer is C .

Ans 7:

Class : Class 7

Ans 8:

Class : Class 5

Ans 9:

Class : Class 5

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Subject :NSO    Class : Class 2

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