National Science Olympiad Forum By SOF Olympiad Trainer - Page 289

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
I did silly mistake

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
I did silly mistake

Ans 2:

Class : Class 3
man come on

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
I just did silly mistake

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 10

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
isnt the ans c?

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Class : Class 9
ans c

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
answer is D ) this is because soap is alkaline in nature so p is alkaline then we can cancel out b or c then basic or alkaline substances turn red when rubbed on turmeric paper. hen they have mentioned in the answer that it has to be lemon juice and it contains citric acid or vitamin c the reaction turns it back to yellow that reaction is known as neutralization reaction

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