National Science Olympiad Forum By SOF Olympiad Trainer
  1. Home
  2. /  Forum

User Forum

Ask Your Question
APOORVA.GUPTA from DPS Noida, Noida
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

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

Ans 3:

G Sai krishiv raju from Delhi public school, Hyderabad
Class : Class 4
d

Ans 4:

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

Ans 5:

Advika Narkar from Vibgyor High Airoli, Navi Mumbai
Class : Class 4
ans is Dplease agreeeveryone seethe ans is D

Ans 6:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
In C it is written solvent - solute =solution but in D it is written solvent solute = solution . So the correct answer is D .

Ans 7:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 4
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 8:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
d

Ans 9:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 5
D

Ans 10:

RITASHREE ROY from VMS JOKA, KOLKATA
Class : Class 7
the answer is d because solute and soluvent together form solution

Ans 11:

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

Ans 12:

Aarush from St Joseph sen sec school Mahoba, Kulpahar
Class : Class 6
my ans is d my darling

Ans 13:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
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 14:

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 15:

S K Charukhanthan from KV, Bangalore
Class : Class 4
C and D is same how could they do like thissssssssssssssss?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????///

Post Your Answer

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

Post Your Answer

Pranet Abwani from ,
Subject :NSO    Class : Class 5

Post Your Answer

Pranet Abwani from ,
Subject :NSO    Class : Class 5

Post Your Answer

Pranet Abwani from ,
Subject :NSO    Class : Class 5

Post Your Answer

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.

Post Your Answer

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

Post Your Answer

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

Post Your Answer

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

Which of the following statements are incorrect?
I. Reactivity of Al decreases if it is dipped in nitric acid.
II. Carbon can reduce the oxides of Na and Mg.
III. NaCl is a good conductor of electricity in solid state.
IV. Metals like K, Ca and Mg are always found in free state in nature.

A I, II and III only
B II, III and IV only
C I and III only
D II and III only


common salt can never conduct electricity in solid state

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.

Post Your Answer

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

Ans 1:

Anish Bharadwaj from Delhi public school , Singapore
Class : Class 8
Ans is D

Post Your Answer