National Science Olympiad Forum By SOF Olympiad Trainer - Page 691

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
It is plant P because if we compare 5 1/2cm with other measures, it will be the largest.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 1
D.

Ans 2:

Class : Class 4
Guys!! Date palm grows in deserts. they are asking about a plant in hilly ares.

Ans 3: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 4:

Class : Class 8

Ans 5:

Class : Class 6
My Answer is DPollination is when pollen of a plant travels from one plant to another by something (i.e.Insect and water). Pollens are used to grow seeds in the plant

Ans 6:

Class : Class 5
I go with Jasnoor's option. A

Ans 7:

Class : Class 4
what is pollination

Ans 8:

Class : Class 5

Ans 9:

Class : Class 6
Option D

Ans 10:

Class : Class 4
GMVIYHJ,OKHJFYJHIKOHARRYPOTTERRJVHMNHJGJJJGJYTGIJHIOKHHUJ TRY TO FIND A NOUN IN THIS JUMBLE OF WORDS

Ans 11:

Class : Class 3

Ans 12:

Class : Class 5

Ans 13:

Class : Class 8

Ans 14:

Class : Class 4
A

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 2:

Class : Class 7
DB

Ans 3:

Class : Class 9
but the ques is wrong........if a is sitting between g and c, how is c second to the right of a ???????

Ans 4:

Class : Class 10

Ans 5:

Class : Class 9
@sjash the question is trying to say that E is second to the right of a, not c

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 10
D as it is mentioned that the particle is travelling at a constant speed

Ans 2:

Class : Class 7
option c is correct

Ans 3:

Class : Class 9
Both C and D are correct

Ans 4:

Class : Class 10
not c i think

Ans 5:

Class : Class 7
Both 'C' and 'D' are correct

Ans 6:

Class : Class 7
agoogle says a

Ans 7:

Class : Class 7
Both option C and option D are correct as since it is moving in constant speed, it's acceleration will be zero and the direction will not change as it was not mentioned and the particle is travelling on a straight road

Ans 8:

Class : Class 9
Both C and D I prefer. SOF pls check

Ans 9:

Class : Class 9
both options "C" and "D" are correct in my opinion cause as the car is moving at a constant speed there is no acceleration and as the car is being ridden on a straight road direction of movement also does not change, Hence proving that both option "C" and "D" are correct. I hope my answer was helpful. A very Happy New Year to all

Ans 10:

Class : Class 7
option c is correct as acceleration means change of speed

Ans 11:

Class : Class 9
c and d

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
Answer is (a). This is observed due to this reasonThere's a line which is making an angle 55° and is a linear pair. Hence the angle of line (mirror) p is 180°. But 55° is not the angle of incidence. To get the sum of angle of incidence and reflection, we multiply 55° by 2 and get 70°. Since angle of incidence =angle of reflection, 70°÷2=35°. The angle of incident ray and the reflected ray of P and Q are same thus the sum of the angle of incidence and angle of reflection would be the same (70°). We know, angle of incidence=angle of reflection, hence 70°÷2=35°. Or A=35°

Ans 2:

Class : Class 7
Here the properties of lines and angles will be applied.Then the laws of reflection

Ans 3:

Class : Class 9
I actually don't get the logic behind it

Ans 4:

Class : Class 7
The correct is C

Ans 5: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 6:

Class : Class 9
I am not able to understand it

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 5
Ans c

Ans 2:

Class : Class 9
yes ans c

Ans 3:

Class : Class 8
ans= c

Ans 4:

Class : Class 8

Ans 5:

Class : Class 10
the answer should be B because cocave lens is a diverging lens which will diverge the light to all parts of the room

Ans 6:

Class : Class 7
0hi hi hih h hi hi hi hii

Ans 7:

Class : Class 2
A

Ans 8:

Class : Class 9

Ans 9:

Class : Class 7
The answer is B

Ans 10:

Class : Class 4
yes according to me also the answer is c but in nso practice papers it is written as d

Ans 11:

Class : Class 7
The correct answer is D.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9
D is correct

Ans 2:

Class : Class 4
NONE of these is the correct answer

Ans 3:

Class : Class 2

Ans 4:

Class : Class 8
I think B and D is correct.

Ans 5:

Class : Class 4
D is correct

Ans 6:

Class : Class 4

Ans 7:

Class : Class 7
yes you are right

Ans 8:

Class : Class 5
the answer is d

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 10
Hcl doesnt react with glass. The explanation is wrong

Ans 2:

Class : Class 7
Yes, I also agree. HCl is a strong acid and reacts with metals almost exactly like H2S04, it is also stored in glass for this reason, question is wrong.

Ans 3:

Class : Class 8

Ans 4:

Class : Class 6
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 5:

Class : Class 8
I completely agree... The HCl reacts with metals , which is major reason of why HCl is stored in glass bottles..

Ans 6:

Class : Class 8
Inorganic acids such as minerals acid like HCL , H2SO4 etc . Are. Not always made in factories . HCL is produced in our stomach.

Ans 7:

Class : Class 8
hcl reacts with metals too

Ans 8:

Class : Class 9
Hydrocloric acid is very corrosive and reacts with metals . So HCL is stored in glass bottles because it dont causes damage to it . ..........SO 3 statement should be true and their explanation is wrong .

Ans 9:

Class : Class 8
Hydrochloric acid reacts with metals and corrodes them and is therefore stored in glass bottles... This question is wrong and so is the explanation.

Ans 10:

Class : Class 7
Q is wrong since option 1 is false, rest all are true

Ans 11:

Class : Class 10
Hcl reacts with metals also

Ans 12:

Class : Class 5
You all are correct

Ans 13:

Class : Class 8

Ans 14:

Class : Class 10
Hcl doesen't react with metals......Sulphuric acid does

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7
i gave the correct answer but in the result they are showing that it is wrong.it is the same case with some other questions too.Please make a note that you correct it,thank you.

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