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aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Aarushi Chaubey from Teoler High School, Jaipur
Class : Class 8
the answer (a) not (d)

Ans 2:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
The answer is A and not D since the terminals of the battery are not connected in a proper way.

Ans 3:

Shubhangi Pathak from Lilavatibai Podar High School, Mumbai
Class : Class 7
Guys, the question says to find the incorrect option not correct one!

Ans 4:

Hprakash09 from Billabong high Bhopal, Bhopal
Class : Class 7
the answer is (A) and not (D)

Ans 5:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
They have asked incorrect. Even I went wrong here

Ans 6:

ansh rai from delhi public school, Bhilai
Class : Class 4
Answer is a not d

Ans 7:

Basundhara Ghosh from Birla High School Mukundapur , Kolkata
Class : Class 7
Answer is B not D

Ans 8:

Vihaan Agrawal from Lotus Valley International School, Gurgaon
Class : Class 7
it can also be B

Ans 9:

Midhuna from ABCD, Banglore
Class : Class 3
find incorrect option not correct

Ans 10:

IAMLOST from ABC, Pune
Class : Class 8

Ans 11:

ALICE from Delhi Public School, UDAIPUR
Class : Class 8
The answer should be 'B'

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Swarnavo from Reso, Kota
Subject :NSO    Class : Class 7

Ans 1:

Anagha s Karnis from vijaya vittala vidyashala, MYSORE
Class : Class 8
Option c is the correct answer, because if at all any cold material is stored in the flask, then the liquid becomes hot due to the heat of the sun. Hence it is used to reflect the radiation from the sun

Ans 2:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
A

Ans 3:

Bhumi Chheda from SVKM J V Parekh International School, Mumbai
Class : Class 9
i am not sure if it is A or C

Ans 4:

shashwat pandey from Doon International School Dalanwala, Dehradun
Class : Class 8
In my opinoin A is corrcect beacuse silvered wall is a solid thing and solid thing get's heat through the process of conduction.

Ans 5:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
A is the correct answer

Ans 6:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
OPTION C IS CORRECT ANSWER.

Ans 7:

Hritvi from Podar International School, Mumbai
Class : Class 7
Option C is the correct answer as the silvered walls of the thermo flask helps the liquid to sustain its form by reflecting the heat by Radiation (Heat that does not need any medium to travel unlike conduction and convection.)

Ans 8:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option c

Ans 9:

Soumyajit Roy from Delhi Public School Jamnagar, Jamnagar
Class : Class 9

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Avinash Mishra from Central Hindu School, Gorakhpur
Subject :NSO    Class : Class 10

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Arav Singh from Jyoti Niketan School, Azamgarh
Subject :NSO    Class : Class 5

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Raghav Tyagi from birla vidya niketan, new delhi
Subject :NSO    Class : Class 8

Ans 1:

Jaidev Chowdhary from Shamrock International School, VIJAYAWADA
Class : Class 8

Ans 2:

Ayush Chauhan from Modern Public School, Bhiwadi
Class : Class 9

Ans 3:

AAshutosh Jindal from HOLY angels school, RAJPURA
Class : Class 8
D

Ans 4:

Nilanjana De from Delhi Public School North, Bengaluru
Class : Class 8
Can someone please explain why the answer is A?

Ans 5:

Paarth Vashistha from Kunskapsskolan Gurgaon , Gurgaon
Class : Class 8
How will the bicycle move if one wheel is moving forward and other backward ?

Ans 6:

Student from School, City
Class : Class 8
Explain with diagram in the solution.

Ans 7:

Bipasana from KV IIT Kanpur, Kanpur
Class : Class 9
It IS A.

Ans 8:

AAshutosh Jindal from HOLY angels school, RAJPURA
Class : Class 8
D

Ans 9:

Venya from CHIREC International, Hyderabad
Class : Class 9
I don't understand how it is A. Both the wheels move in the same direction. It can't be C as the wheels are moving in the forward direction hence it is none of the above.

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SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon
Subject :NSO    Class : Class 4

Ans 1:

Himanshu Tiwari from Billabong High International School, Bhopal
Class : Class 4
22

Ans 2:

Himanshu Tiwari from Billabong High International School, Bhopal
Class : Class 4
22

Ans 3:

Aishi Asati from Global city international School, Bangalore
Class : Class 4
D

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Arundhathi from NATIONAL PUBLIC SCHOOL, CHENNAI
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Yes!!

Ans 2:

Himanshu Tiwari from Billabong High International School, Bhopal
Class : Class 4
Yes they do.

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Pranesh Sathish Kumar from Diya Academy of learning, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
I will go with A

Ans 2:

Ashwin Shridhar from Vidyashilp Academy, Bangalore
Class : Class 9
R

Ans 3:

Ritesh Narayan Das from Adamas International School, Kolkata
Class : Class 10
R

Ans 4:

Ved prajapati from Adani Vidya Mandir , Ahmedabad
Class : Class 8
(a)p

Ans 5:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
I will go with A

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ADITHI M from NARAYANA E TECHNO SCHOOL, BANGALORE
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B. The pattern is in increasing powers of 5.

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SUBRATA MUKHERJEE from ,
Subject :NSO    Class : Class 8

Few statements are given below. Identify the incorrect statements and mark the appropriate option.
(i) In fractional distillation of petroleum, hydrocarbon with lowest boiling point condenses first.
(ii) Useful substances obtained from petroleum and natural gas are termed as ‘Petrochemicals’.
(iii) Coke is used in the extraction of many metals.
(iv) Paraffin wax used in candles, vaseline, grease, polish is obtained by destructive distillation of coal.

A (i) and (ii)
B (i) and (iv)
C (i), (ii) and (iii)
D (ii) and (iv)


It should be d

Ans 1:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6

Ans 2:

PARTH JAIN from DPS INDIRAPURAM, GHAZIABAD
Class : Class 8

Ans 3: (Master Answer)

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

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