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arijit paul from New Town School, Kolkata
Subject :NSO    Class : Class 7

Ans 1:

Neevedita Singh from Auxilium Convent School Dum Dum, Kolkata
Class : Class 7
A

Ans 2:

Khwahish Sharma from Oakfield Public School , Jaipur
Class : Class 7
The answer should be C because during the last 10 seconds [ 40 second ] the distance is 10 meter not 5 meter.

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 3

Ans 1:

Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Class : Class 4
what????

Ans 2:

Ashwak from Cambridge, Jalandhar
Class : Class 9
They are right it should be [B] .

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 9

Ans 4:

Sreenath from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 5
Tailor bird that is A

Ans 5:

Aarathy Sudhir Aarav Sudhir from Global Indian International School, Abu Dhabi
Class : Class 7
Tailor Bird 's Nest Is Made Of 2 Leaves Not Like This One Gotcha!

Ans 6:

SS from meridian, hyderabad
Class : Class 5
yes the answer is tailor bird

Ans 7:

Aditi Mahanti from DPS North Kolkata, Kolkata
Class : Class 3
It should be a tailorbird

Ans 8:

Diya Jasmina from Samsidh MLZS, Bengaluru
Class : Class 4
WHAT!!!!!! IT SHOULD BE (A).

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Shreesh Panigrahi from St. Xavier's High School, Kedargouri Bhubaneswar
Subject :NSO    Class : Class 8

Ans 1:

Subash kandoth from New horizon public school , Navi Mumbai
Class : Class 10
TBH2VI http://www.LnAJ7K8QSpfMO2wQ8gO.com

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Ankit Nandy from Lawrence High School, Bangalore
Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Alpha, Beta, Gamma in ascending order.

Alpha particles leaves the nucleus of an unstable atom at a speed of 16,000 kilometres per second, around a tenth the speed of light.
Beta particles travel at a speed of 270,000 kilometres per second, around 98% of speed of light.
Gamma particles travel at the speed of light.

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Agnimitra Gupta from south point school, Kolkata
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

Aarush Thakur from DPS, Gurgaon
Class : Class 6
option d maybe

Ans 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4

Ans 9:

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 10:

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 11:

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

Ans 12:

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

Ans 13:

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 14:

IAMLOST from ABC, Pune
Class : Class 8

Ans 15:

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

Ans 16:

Sandipta Bhattacharjee from Sri Ram Narayan Singh Memorial High School, Kolkata
Class : Class 5
B and Co are same. Intermolecular space is not decreasing in any of the situations. It is wrong.

Ans 17:

ArhamAnay Jain 4G from MDPS, Faridabad
Class : Class 4
all options are wrong

Ans 18:

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

Ans 19:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7

Ans 20:

Bhavya Jain from K R Mangalam World Scholl, GHAZIABAD
Class : Class 4
how can liquid turn into gas by freezing ? Option A does the same thing so the correct option should be D

Ans 21:

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

Ans 22:

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

Ans 23:

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

Ans 24:

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

Ans 25:

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

Ans 26:

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

Ans 27:

Samika Ranjan from The Shri Ram School Aravali, Gurgaon
Class : Class 7
please change the question.

Ans 28:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
Qtn. agreed but main point is which is column X and which is column is Y??????

Ans 29:

Aparna praveen from Rajagiri, Ernakulam
Class : Class 4
is there a correction in the options given?if not please clarify with explanation

Ans 30:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4
Option b, c are the same. Pls give me a proper explanation as to why one option is correct

Ans 31:

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

Ans 32:

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 33:

Ainesh das from Chrysalis, Bangalore
Class : Class 4
all are wrong

Ans 34:

Sandipta Bhattacharjee from Sri Ram Narayan Singh Memorial High School, Kolkata
Class : Class 5
I have by mistake typed it Co sorry it will be C. I have a solution we can report error.

Ans 35:

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

Ans 36:

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

Ans 37:

Ainesh das from Chrysalis, Bangalore
Class : Class 4
ansAll answers oposite

Ans 38:

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

Ans 39:

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

Ans 40:

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 41:

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

Ans 42:

Chiranjib kar from MOUNT LITERA ZEE SCHOOL, JAJPUR
Class : Class 6
Options are wrong. Molecular distance should be less.

Ans 43:

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

Ans 44:

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

Ans 45:

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

Ans 46:

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

Ans 47:

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 48:

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

Ans 49:

Inakshi Dev from Hemsheela, Kolkatta, Kolkatta
Class : Class 4
Are B, C, D correct.

Ans 50:

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

Ans 51:

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

Ans 52:

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

Ans 53:

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

Ans 54:

BISWADITYA TRIPATHY from Delhi public school Bangalore east, Bangalore
Class : Class 4
Please explain the answer. I also support Baibhab that the choices given are wrong.

Ans 55:

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

Ans 56:

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 57:

Deepak Vijayaragavan from Greenwood High, Bengaluru
Class : Class 4
Please change it. It is correct in NSO book like Harish Divakar said

Ans 58:

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

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Agnimitra Gupta from south point school, Kolkata
Subject :NSO    Class : Class 4

Ans 1:

Baibhab Tripathy from SAI INTERNATIONAL SCHOOL, BHUBANESWAR
Class : Class 7
I think the ‘A’ is the right answer

Ans 2:

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

Ans 3:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 6
a

Ans 4:

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

Ans 5:

Alisha from Delhi Public School , bopal, Ahemdabad
Class : Class 8
C is right and correct ,and if isnt tell me hhhhhhhhhhhhhhhooooooooooooooooooooowwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwHOW?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????/

Ans 6:

Diyaa Wahi from GDGps Vasant Kunj, Delhi
Class : Class 4
C IS THE CORRECT ANS AS BOTH CLEAR PLASTIC SHEET AND TRACING PAPER ARE BOTH TRANSLUCENT AND HENCE ALLOWING EQUAL AMOUNT OF LIGHT TO PASS THROUGH.

Ans 7:

Saani from Cambridge School, Mangalore
Class : Class 9
A is correct

Ans 8:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
AAAAAAAAA IS RIGHT

Ans 9:

Rajveer Santosh Mulik from Rims International School, Pune
Class : Class 4
YES , C IS CORRECT @RAJVEER

Ans 10:

Gurnoor from Chitkara International School, Chandigarh
Class : Class 4
c

Ans 11:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
c

Ans 12:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
C

Ans 13:

Baibhab Tripathy from SAI INTERNATIONAL SCHOOL, BHUBANESWAR
Class : Class 7

Ans 14:

Shrihan Koley from Radiant International School , Patna
Class : Class 5
Hoooooooooooooooooooooooooooooossssssssssssssssssssssssssssssssssssssssssssssssssss

Ans 15:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC is correct

Ans 16:

Shreeraj from ISWK, Muscat, Muscat
Class : Class 4
Very Very Good

Ans 17:

SIDDHARTH SOMANI from Vibgyor High, Mumbai
Class : Class 5
C is the correct answerEveryone

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ANANYA.SINGH from dps, noida
Subject :NSO    Class : Class 2

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saesha from sulochanadevi singhania school, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

naman from PSBBM, Chennai
Class : Class 1
answer will be d 4 kilo meters

Ans 2:

Reeth Bhasin from Jamnabai Narsee International School, Mumbai
Class : Class 5

Ans 3:

R K Madhav from Kendriya Vidhyalaya Kottayam, Kottayam
Class : Class 7
4 km

Ans 4:

SRIJITA MURMU from DPS Joka, Kolkata
Class : Class 7
4km

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Ved Parixit Brahmbhatt from Hillwoods School, Gandhinagar
Subject :NSO    Class : Class 9

Ans 1:

Aarthi from Prince matriculation higher secondary school , Chennai
Class : Class 9
SI unit of impluse is Newton

Ans 2:

Shrestha Dutta from Julien Day School, KALYANI
Class : Class 10
force=change in momentum/time interval(del t) impulse=change in momentum=force * time interval(del t) SI unit of impulse is newton second or Ns. CGS unit of impulse is dyne second .

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Sanjana Thampy from Ncfe, Bangalore
Subject :NSO    Class : Class 9

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