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arpit12345 from Ryan International School, New Delhi
Subject :NSO    Class : Class 10

Ans 1:

Annapurna Bulusu from AcS, Delhi
Class : Class 10
B) II,III,IV CARBON can reduce oxides of metals lower in the activity series. K, Ca and Mg are high in the activity series so they are very reactive so they can not be found in free state easily.

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arpit12345 from Ryan International School, New Delhi
Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

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

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arpit12345 from Ryan International School, New Delhi
Subject :NSO    Class : Class 10

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Shivek from Dav, Hazaribag
Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Because of the difference in the number of electrons on both ends of it.

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Aastik from Joy senior secondary school, Jabalpur
Subject :NSO    Class : Class 10

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

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ram from abc, xyz
Subject :NSO    Class : Class 10

Ans 1:

Savneet Singh from SA JAIN SENIOR MODEL SCHOOL, AMBALA CITY
Class : Class 10
NO.for being a conductor any acid is need to be dissolved in it.

Ans 2:

Vaidehi from Agragami Convent School.Wardha., wardha
Class : Class 10
No because it does not contain any ions.

Ans 3:

ram from abc, xyz
Class : Class 10
test_i don't know

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Vivek from Adarsha vidyalaya, Holenarasipura
Subject :NSO    Class : Class 10

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Rahul Barodia from School of Scholars , Amravati
Class : Class 10
It is because diamonds contain no free electron and hence do not conduct electricity.

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Savneet Singh from SA JAIN SENIOR MODEL SCHOOL, AMBALA CITY
Subject :NSO    Class : Class 10

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Savneet Singh from SA JAIN SENIOR MODEL SCHOOL, AMBALA CITY
Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
It is estimated to be around (5.9722±0.0006)×1024 kg.

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Vaidehi from Agragami Convent School.Wardha., wardha
Subject :NSO    Class : Class 10

Ans 1:

shivangini kumar from Queens college, indore
Class : Class 10
yes because it is part of 17 period of halogens in periodic table

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