Subject :NSO Class : Class 4
Subject :NSO Class : Class 4
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 5
Ans 1:
Class : Class 6
Ans is A because bituminous is not an ore, typhoid is not a vector-borne disease and nutcracker is not a class 1 lever.
Ans 2:
Class : Class 9
The correct answer is A because Bituminous is not a ore, typhoid is a water-borne disease and rest are vector-borne disease and nutcracker is an example of 2nd class lever whereas all the other are 1st class lever.
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Subject :NSO Class : Class 6
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Subject :NSO Class : Class 8
Match column I with column II and choose the correct option from the codes given below.
Column I | Column II |
P. Nylon | (i) Burns quickly with a smell of burning paper |
Q. Wool | (ii) Burns with sooty flame, fabric shrinks and black beads are formed |
R. Acrylic | (iii) Shrinks after exposure to flame, forms hard beads and gives a smell of burning hair |
S. Rayon | (iv) Burns slowly with a smell of burning hair |
A P - (i), Q - (iv), R - (ii), S - (iii)
B P - (iii), Q - (iv), R - (ii), S - (i)
C P - (iv), Q - (iii), R - (i), S - (ii)
D P - (ii), Q - (iv), R - (iii), S - (i)
Ans 2:
Class : Class 9
yes the answer is D. nylon burns with a smell of celery because its a synthetic fibre.
Ans 4:
Class : Class 8
Nylon should neither have a smell of burning hair nor the smell of burning paper. Nylon has a celery or plastic-like cell. Hence the correct answer is D. But on the other hand when acrylic burns, it shrinks and converts into black beads. On this contrast, the correct answer will be B with respect to acrylic and D with respect to Nylon. There is definitely an error in the options of the answers!
Ans 6:
Class : Class 9
IT must be D! Nylon does not burn with the smell of burning hair as it is purely synthetic and has no relation to the protein based hair.
Ans 15:
Class : Class 8
It should be D. Because nylon would never once burn with smell of paper in it's entire career. SOF, you gotta chnage the answer man.
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 4