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Abhi Shiv from Rose Public School, Darbhanga
Subject :NSO    Class : Class 10

Ans 1:

Vaidehi from Agragami Convent School.Wardha., wardha
Class : Class 10
actually water is neutral. IRRESPECTIVE of volume ,it will contain equal no. of negative and positive charges. according to your que., you have 0.3L of water. assume that you have 36g of water(since the weight is not mentioned).Then calculate total moles of it(=2 moles).THEN ,calculate total moles of (H+) IONS i.e, +charge[=4 moles].Then,4*6.022*10power23. finally,total no. of +charge=24.088*10power23. I hope this will help you.

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shauarya yadav from GURU TEGH BAHADUR PUBLIC SCHOOL, Meerut
Subject :NSO    Class : Class 5

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rashmikedia.ca from JSS PRIVATE SCHOOL, DUBAI, Dubai
Subject :NSO    Class : Class 6

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RiptideMel from Modern Vidya Niketan Senior Secondary School Sec 17, Faridabad
Subject :NSO    Class : Class 9

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naman from PSBBM, Chennai
Subject :NSO    Class : Class 5

Ans 1:

Manisha Vichare from Dcv, Mumbai
Class : Class 7
Ans is 1 metre as 12/6 =2; 2/2=1

Ans 2:

Manisha Vichare from Dcv, Mumbai
Class : Class 7
Ans is 1 metre as 12/6 =2; 2/2=1

Ans 3:

Gauri Singh from St. John's School, Marhauli, Varanasi
Class : Class 5
a. 1 m

Ans 4:

Saswatayu Sengupta from Don Bosco Park Circus , Kolkata
Class : Class 6
A

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Sohum Saha from DAV Model School Durgapur, Durgapur
Subject :NSO    Class : Class 7

Ans 1:

abhinav from fitjee world school, Hyderabad
Class : Class 8
cng=compressed natural gas lpg=lquified petrolium gas

Ans 2:

Anurag bagal from DAV public school Airoli, Navi Mumbai
Class : Class 7
CNG-compressed natural gas LPG-liquidified petroleum gas

Ans 3:

Aditya Kamat from I V B D High School, Dhavali , Ponda- Goa
Class : Class 7
The full form of CNG & LPG is
  • CNG = Compressed natural gas
  • LPG = Liquified (or liquid) petrolium gas

    • Ans 4:

    Nischay verma from The millennium school, Bathinda
    Class : Class 8
    Compressed natural gas and liquid petroleum gas

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    NEEL from carmel school, Kolkata
    Subject :NSO    Class : Class 2

    Ans 1:

    Krisha from Chaitanya, Gandhinagar
    Class : Class 2
    someone please explain this question

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    Pulkit Khanna from DELHI PUBLIC SCHOOL RUBY PARK KOLKATA, Kolkata
    Subject :NSO    Class : Class 7

    Ans 1:

    Dinesh Kumar Sharma from Navy Children School, Chanakyapuri, New Delhi, New Delhi
    Class : Class 7
    THE ANSWER IS B AS IN THE BURNING TEST BURNING PLASTIC MEANS THE YARN IS A SYNTHETIC FIBRE

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    Vivaan Kumar from Suncity World School Gurgaon, Gurgaon
    Subject :NSO    Class : Class 4

    Ans 1:

    Nikhil B. S. from Podar International School, Hassan
    Class : Class 4
    A- 2 to 4 Hours a day

    Ans 2:

    Sandesh Bhagwat from GIIS, Pune
    Class : Class 6
    I think its 6-9 hours

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    from DPS, NOIDA
    Subject :NSO    Class : Class 2

    Ans 1:

    sanaya parakh from n h goel world school, Raipur
    Class : Class 2
    B

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