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Subject :NSO    Class : Class 4

X changes to Y when it is cooled down.
Select the correct option about the arrangement of molecules in X and Y.

A
B
C
D


Ans 1:

Vidhya M from Vibgyor High Bannerghatta, Bangalore
Class : Class 7
When a substance is cooled the molecules come closer. But there is no picture showing that the molecules are coming closer there is no correct answer. Also option B and C are the same. Can you please change it?

Ans 2:

from ,
Class :
Please explain the answer. I also support Baibhab that the choices given are wrong.

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The correct answer is C

Ans 4:

from ,
Class :
Qtn. agreed but main point is which is column X and which is column is Y??????

Ans 5:

shreyash rawat from podar international school, pune
Class : Class 8
4wrong question

Ans 6:

Saumya Asmriti from CITY MONTESSORY SCHOOL INTER COLLEGE LUCKNOW UTTAR PRADESH, Lucknow
Class : Class 4
All options are wrong.

Ans 7:

VAIBHAV RAI from Cambridge Court High School, JAIPUR
Class : Class 8
I think all options are wrong

Ans 8:

from ,
Class :
ansAll answers oposite

Ans 9:

from ,
Class :
all are wrong

Ans 10:

IAMLOST from ABC, Pune
Class : Class 8

Ans 11:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
HARRY CAN YOU PLEASE EXPLAIN ME

Ans 12:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 10
PLS. CORRECT

Ans 13:

Shailaja Divakar from Chennai public school global school, London
Class : Class 6
All the answer is wrong. In the NSO book, it is right.

Ans 14:

monisha garg from carmel convent school sector 9 chandigarh, panchkula
Class : Class 4
all options are wrong

Ans 15:

Mahati p from cornerstone the public school, deepthi sreenagar colony hyderabad
Class : Class 6

Ans 16:

Mahati p from cornerstone the public school, deepthi sreenagar colony hyderabad
Class : Class 6
All the options are totally wrong, please change them

Ans 17:

from ,
Class :
B and Co are same. Intermolecular space is not decreasing in any of the situations. It is wrong.

Ans 18:

Isra Fathima from sophia high school, Bengaluru
Class : Class 7
The options given are wrong / confusing. Please clarify.

Ans 19:

from ,
Class :
Please change it. It is correct in NSO book like Harish Divakar said

Ans 20:

Angshu from Dehli Public School Bangalore East, Bangalore
Class : Class 9
it is wrong

Ans 21:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
I also think that.Questions ,options, colums and answers didn't mentioned.

Ans 22:

Archit Borkar from SSVM World School, Coimbatore
Class : Class 9
wrong options

Ans 23:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
ALL OPTIONS ARE WRONG

Ans 24:

from ,
Class :
Options are wrong. Molecular distance should be less.

Ans 25:

Tulaa Auti from Vidya valley school, pune
Class : Class 4
All are wrong. At least number of atoms should be same. So answer should be D

Ans 26:

NEEV SINGH from VISHWA BHARATI PUBLIC SCHOOL, Noida
Class : Class 8
all options are wrong

Ans 27:

Riddhima Pandey from Chinmaya Vidyalaya, Bokaro Steel City
Class : Class 3
I agree with Harry , 1 B AND C ARE NOT THE SAME. 2 When liquid is cooled down it forms solid, SO THE ONLY ANSWER IS CCCC

Ans 28:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The question , answer and the solution are all correct … Vrishank don't say that the SOF is mad ( I think you are mad ) you are a FOOL

Ans 29:

from ,
Class :
Are B, C, D correct.

Ans 30:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Class : Class 9
the options are wrong

Ans 31:

Vrishank Sai Anand from GEMS Modern Academy, Dubai
Class : Class 9
SOF IS MAD

Ans 32:

Arpit Pratap Singh from Delhi Public School Bangalore North , Bengaluru
Class : Class 7
you are right vaibhav all are wrong

Ans 33:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7
Please please please please please please please please change the question

Ans 34:

from ,
Class :
I have by mistake typed it Co sorry it will be C. I have a solution we can report error.

Ans 35:

Deepayan Das from South Point High School, Kolkata
Class : Class 6
There is no specific details about which one is X or Y.So by common sense I think that it would be D.But B

Ans 36:

from ,
Class :
please change the question.

Ans 37:

from ,
Class :
all options are wrong

Ans 38:

Pratibha from Vaels billabong international, Chennai
Class : Class 5
Can somebody pls answer this question with explanation

Ans 39:

from ,
Class :
option d maybe

Ans 40:

Kaashvi Sharma from Bal Bharati Public School, GRHM, New Delhi
Class : Class 8
if an object is cooled down the molecule structure changes from loosely packed to tightly packed. therefore none of the options is correct

Ans 41:

from ,
Class :
Option b, c are the same. Pls give me a proper explanation as to why one option is correct

Ans 42:

Abhinav Kulkarni from National Centre For Excellence, Bengaluru
Class : Class 4
all Q are wrong

Ans 43:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7

Ans 44:

from ,
Class :

Ans 45:

sundus from salwan public school, Gurgaon
Class : Class 4
All options are WRONG

Ans 46:

Prashanth from Gems Modern Academy, Dubai
Class : Class 5
SHOULD HAVE BEEN SPECIFIC WITH RESPECT TO X AND Y MARKING

Ans 47:

Prerona Chatterjee from Delhi Public School North Kolkata, Kolkata
Class : Class 5
The question is wrong... and so the answer is also misleading.

Ans 48:

Prashanth from Gems Modern Academy, Dubai
Class : Class 5
THE ANSWER IS WRONG.

Ans 49:

from ,
Class :
is there a correction in the options given?if not please clarify with explanation

Ans 50:

Baibhab Tripathy from SAI INTERNATIONAL SCHOOL, BHUBANESWAR
Class : Class 7
I think al options are wrong . Please tell the correct answer

Ans 51:

from ,
Class : Class 5
Options are wrong. Molecular distance should be less. first fix which column is X and Y.

Ans 52:

Utkarsh Chakravarty from Pinnacle High International School, Mumbai
Class : Class 6
None of the options are correct according to my doubt.

Ans 53:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 10
ALL ARE WRONG

Ans 54:

Yaduveer Rathore from MSMS School, Jaipur
Class : Class 5
wrong wrong wrong wrong wrong wrong

Ans 55:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 10
question, answer and solution is wrongall the options are showing the difference on heating

Ans 56:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
b and c are all the same

Ans 57:

from ,
Class :
how can liquid turn into gas by freezing ? Option A does the same thing so the correct option should be D

Ans 58:

Shailaja Divakar from Chennai public school global school, London
Class : Class 6

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