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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

sjash from tagore international, New Delhi
Class : Class 7
but the ques is wrong........if a is sitting between g and c, how is c second to the right of a ???????

Ans 2: (Master Answer)

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

Ans 3:

Gouse Jani from Aditya talent school, Kakinada
Class : Class 7
DB

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

Manu Dagur from Rukmani Birla Modern High School, Jaipur, JAIPUR
Class : Class 10
D as it is mentioned that the particle is travelling at a constant speed

Ans 2:

govindkrishnan p from KENDRIYA VIDYLAYA PAYYANUR, PAYYANUR
Class : Class 7
Both 'C' and 'D' are correct

Ans 3:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 7
not c i think

Ans 4:

RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT
Class : Class 7
option c is correct as acceleration means change of speed

Ans 5:

RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT
Class : Class 7
option c is correct

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

Anshuman D from MVM, Hyderabad
Class : Class 8
I actually don't get the logic behind it

Ans 2:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
The correct is C

Ans 3:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
Here the properties of lines and angles will be applied.Then the laws of reflection

Ans 4:

Anshuman D from MVM, Hyderabad
Class : Class 8
I am not able to understand it

Ans 5: (Master Answer)

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

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
0hi hi hih h hi hi hi hii

Ans 2:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
The correct answer is D.

Ans 3:

Md.ZEESHAN ali from St. Agness branch school, Kharagpur
Class : Class 4
yes according to me also the answer is c but in nso practice papers it is written as d

Ans 4:

Jai kumar Bohara from Dps, Udaipur
Class : Class 8
yes ans c

Ans 5:

Tanush Rao from Delhi Public School Vasant Kunj, Delhi
Class : Class 8

Ans 6:

Sanjay Kumar from Vellammal Vidyashram, Chennai
Class : Class 7
Ans c

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priyanshi gupta from opg world school , delhi
Subject :NSO    Class : Class 4

Ans 1:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
the answer is d

Ans 2:

Arnav kaul from Chirec, Hyderabad
Class : Class 5

Ans 3:

PARTH PANCHAL from NEW HORIZON SCHOLARS SCHOOL, THANE
Class : Class 4
yes you are right

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SHAURYA RAJ from LITERA VALLEY SCHOOL, PATNA
Subject :NSO    Class : Class 3

Ans 1:

Smita Roy from Nava Nalanda Santiniketan Shakha, Bolpur
Class : Class 3
C

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ADVAITH KRISHNAN from SHISHUKUNJ INTERNATIONAL SCHOOL, INDORE
Subject :NSO    Class : Class 7

Which of the following statements are correct?
I. The tangy taste of cola drinks is due to carbonic acid which is an organic acid.
II. Inorganic acids are prepared artificially in the industries and are extremely corrosive.
III. Hydrochloric acid reacts with metals to varying degrees therefore, it is stored in glass bottles.
IV. Organic acids are weak acids and are used as food supplements.

A I, II and III only
B I and IV only
C II and IV only
D All of these


Why is carbonic acid inorganic even though all organic acids have carbon in their formulae and H2CO3 is the formula of carbonic acid?

Ans 1:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 8
Hcl reacts with metals also

Ans 2:

dhairya mittal from vidyashram international school jodhpur, Jodhpur
Class : Class 5
You all are correct

Ans 3:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
hcl reacts with metals too

Ans 4:

Ankush Ghosh from DPS, Doha
Class : Class 7
Hcl doesnt react with glass. The explanation is wrong

Ans 5:

Tejas Agarwal from Amity International School , Noida
Class : Class 7
Q is wrong since option 1 is false, rest all are true

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Anhiti Mandal from Shri Ram School, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 8
i gave the correct answer but in the result they are showing that it is wrong.it is the same case with some other questions too.Please make a note that you correct it,thank you.

Ans 2:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 8

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A Ramakrishna Rao from D A V Public School. Unit 8. Bhubaneswar , Bhubaneswar
Subject :NSO    Class : Class 5

Ans 1:

D Murari from Indian School of Excellence, Bangalore
Class : Class 5

Ans 2:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 5
Stapler ( option D ) is the odd one out as it is a third class lever i.e. effort is between the load and fulcrum .

Ans 3:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5

Ans 4:

Rohan David from Oakridge International school, Hyderabad
Class : Class 5
The answer is D because the stapler is the odd one out

Ans 5:

Kavin Karthick M from DPS bangalore east, Bengaluru
Class : Class 6
option D is correct because stapler is 3rd class lever

Ans 6:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 5

Ans 7:

Shruthi from VIBGYOR, Mumbai
Class : Class 5
What is type of Option A?

Ans 8:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
yes because the stapler is a third class lever

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Sarthak yadav from RPS, mahendergarh
Subject :NSO    Class : Class 4

Ans 1:

shibin joseph from ,
Class : Class 3

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