National Science Olympiad Forum By SOF Olympiad Trainer - Page 663
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APOORVA.GUPTA from DPS Noida, Noida
Subject :NSO    Class : Class 4

Ans 1:

G Sai krishiv raju from Delhi public school, Hyderabad
Class : Class 7
d

Ans 2:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Sorry, my first one was misprinted .. I am telling you the correct explanation of the question ---- In C it is written solvent - solute = solution but you see in D it is written solvent solute = solution …….Hence, option D is correct!!!!!

Ans 3:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
D

Ans 4:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
D

Ans 5:

SAI KRISHNA from SHISHYA BEML PUBLIC SCHOOL, BANGALORE
Class : Class 3
charukhanthan in c it is - in d it is so ans is d

Ans 6:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
ans is Dplease agreeeveryone seethe ans is D

Ans 7:

Bhavni Oberoi from Amity International School, Visakhapatnam
Class : Class 4
Solute-solvent is not a solution there is a huge difference

Ans 8:

Ashwak from Cambridge, Jalandhar
Class : Class 9
In C it is written solvent - solute =solution but in D it is written solvent solute = solution . So the correct answer is D .

Ans 9:

Daksh Jain from Deens Academy, Bangalore
Class : Class 4
c is minus and d is plus

Ans 10:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
There is so less difference in both 'C' and 'D'.I think they should make more difference, but in level 2,they will trick you, no matter what.The questions will come like this only.Good Luck Everyone!

Ans 11:

Naitik from Delhi Public School Noida, Noida
Class : Class 4
ans is d

Ans 12:

anika from St Joseph sen sec school Mahoba, Kulpahar
Class : Class 5
my ans is d my darling

Ans 13:

Midhuna from ABCD, Banglore
Class : Class 3
Correct answer is D because solvent and solute gives solution

Ans 14:

S K Charukhanthan from KV, Bangalore
Class : Class 6
C and D is same how could they do like thissssssssssssssss?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????///

Ans 15:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
d

Ans 16:

RITASHREE ROY from VMS JOKA, KOLKATA
Class : Class 8
the answer is d because solute and soluvent together form solution

Ans 17:

Ashwak from Cambridge, Jalandhar
Class : Class 9
d

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Divyanshu from Macro vision academy Burhanpur, Raver
Subject :NSO    Class : Class 2

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Pranet Abwani from ,
Subject :NSO    Class : Class 5

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Pranet Abwani from ,
Subject :NSO    Class : Class 5

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Pranet Abwani from ,
Subject :NSO    Class : Class 5

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shreyansh2010 from Prudence, New Delhi
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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Nayan Raj Dutta from DELHI PUBLIC SCHOOL, Duliajan
Subject :NSO    Class : Class 2

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Nayan Raj Dutta from DELHI PUBLIC SCHOOL, Duliajan
Subject :NSO    Class : Class 2

Ans 1:

Mridu from st pauls, bangalore
Class : Class 3
IT IS A VERY VERY WRONG QUESTION

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arpit12345 from Ryan International School, New Delhi
Subject :NSO    Class : Class 10

Ans 1:

Annapurna Bulusu from AcS, Delhi
Class : Class 10
B) II,III,IV CARBON can reduce oxides of metals lower in the activity series. K, Ca and Mg are high in the activity series so they are very reactive so they can not be found in free state easily.

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devarchan Sarkar from Aditya Birla Public School, Bharuch
Subject :NSO    Class : Class 6

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