National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
-pH stands for potenz Hydrogen, pH value indicates whether the substance is acidic, basic of neutral. - pH less than 7 is acidic -pH greater than 7 is basic - pH equal to 7 is neutral ( neither acidic nor basic)

Ans 2:

Class : Class 8
pH value are the value used to determine wheather a solution is acid or basic in nature Acids= pH<7 Bases= pH>7 Neutral= pH=7

Ans 3:

Class : Class 7
pH scale is a numerical representation of acidity and basicity of the substances. It varies from 1 to 14. The solutions with a pH value less than 7 are referred to as bases and those with a pH value of 7 are to as neutral.

Ans 4:

Class : Class 8
pH is the negative logarithm of H+ ions. A substance having <7 pH is a Base A substance having >7 pH is an Acid Exact pH 7 is a neutral substance

Ans 5:

Class : Class 8
ph is the negative logarithm of hydrogen ion.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 5
please answer officialy

Ans 2:

Class : Class 8
pleaseeeeeee someone answer........

Ans 3:

Class : Class 7
You cant simply earn batches in your house, it is just an online thing. I am not sure now but it used to be by getting 5000 points

Ans 4:

Class : Class 9
by doing your best in the mock tests , I hope so..........

Ans 5:

Class : Class 9
i too want the answer............

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
are you mad? olympiad is the best exam to test your logical,subjective and objective skills

Ans 2:

Class : Class 9
NO WAY!!! How can you say that? Participate and get first rank. Then you'll see.

Ans 3:

Class : Class 8
have u ever participated ??

Ans 4:

Class : Class 9
nooooooooooooo,never

Ans 5:

Class : Class 8

Ans 6:

Class : Class 8
ARE YOU MAD??????

Ans 7:

Class : Class 9
Monkey what knows the flavour of ginger!!!!!!!!!

Ans 8:

Class : Class 9
are you crazy they enhance our knowledege

Ans 9:

Class : Class 8
how can you say like that

Ans 10:

Class : Class 8
no

Ans 11:

Class : Class 8
yes,he is MAD!

Ans 12:

Class : Class 8
nooo.how can you say so?

Ans 13:

Class : Class 8
Everyone's so funny It depends on the olympiad!

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
Thermo plastics- Plastics which are obtained by gentle heating and then moulding and they can be moulded again and again by gentle heating. Thermosetting plastics- Plastics which are obtained by gentle heating and then moulding but they cannot be moulded again and again by heating .

Ans 2:

Class : Class 8
they are the different types of plastic. Thermosetting plastics have a cross linked arrangement of monomers whereas thermoplasts have linear arrangement of monomers

Ans 3:

Class : Class 9
Thermosetting plastics are synthetic materials that strengthen during being heated, but may get damaged when being tried to molded again. Thermoplastics are different. They can be remelted back into liquids and can be remolded also. Ex for thermosetting: epoxy resin(m-seal), melamine, urea formaldehyde etc. Ex for thermoplastics: polythene, polypropylene, polystyrene etc.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
I don't know

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Pulsars are type of neutron star with high electromagnetic radiation and high speed rotation. They are so dense that singe spoon of their matter would wight 2 bn tonnes. Good question......

Ans 2:

Class : Class 6
Pulsars are the remains of a super giant star after the supernova. They are extremely bright even than super giant stars.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
everything that you weannt to know about pulsars:- www.seasky.org/celestial-objects/pulsars.html

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
TVN

Ans 2:

Class : Class 8
TVN

Ans 3:

Class : Class 8
it is TVN like sheetal explained its that method which makes this answer...

Ans 4:

Class : Class 8
ANSWER IS TVN

Ans 5:

Class : Class 9
Thanks!! It really helped me a lot. I really needed help in this ques. Thanks to those who posted the answer.

Ans 6:

Class : Class 8

Ans 7:

Class : Class 8
TVN because if we see the difference between B and D ,it is C...similarly b/t J and M it is K L....next if we take P and K it is L M N O ....that shows the trend 1,2,4.....and it is the same with RSS and TVN. HOPE IT HELPED YOU.

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