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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 10

Ans 2:

Class : Class 9
9.6

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
The answer is 12cm

Ans 2:

Class : Class 9
the answer is 12 cm

Ans 3:

Class : Class 9
The answer is 12cm

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
When rubbed with fur, glass will become negatively charged. However if silk is used instead of fur, glass will acquire a positive charge.

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Subject :NSO    Class : Class 8

Two electroscope one positively charged (X) and the other negatively charged (Y) are connected with a copper wire as shown in figure. Which of the following will happen?


A Electrons will move from X to Y.
B Protons will move from X to Y.
C Electrons will move from Y to X.
D Protons will move from Y to X.


pls somebody tell me the answersplease,please,pppppppppllllllllllleeeeeeeeeeeeaaaaaaaaaaassssssssssssseeeeeeeee

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
D

Ans 2:

Class : Class 5
D

Ans 3:

Class : Class 7
It should be option C. It should be discouraged.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
B

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Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
as if we will contract metal x so it is not neccessery that y will contract if we contract metal y x has to be conyracted with it ans should be a

Ans 2:

Class : Class 5
b

Ans 3:

Class : Class 7
B

Ans 4:

Class : Class 5

Ans 5:

Class : Class 6
All metal expands on heating. Here metal Y expands more which leads to curling of both X and Y. B is the correct option.

Ans 6:

Class : Class 5

Ans 7:

Class : Class 5
C is the correct answer

Ans 8:

Class : Class 5
Sumit Singhal , this is a bimetallic metal . Here , the two metals cannot go away from each other . So here , if y expands than x will also expand , and if x expands than y will also expand . I am getting confusion between A and B .

Ans 9:

Class : Class 5
cONFUSED IN d AND B

Ans 10:

Class : Class 7
The answer should be opt.B

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Subject :NSO    Class : Class 8

The diagram shows a beaker containing a solution of zinc sulphate and two carbon electrodes. A battery is placed next to it. In order that the electrode P be plated with zinc,


A P must be connected to S and Q to R
B P must be connected to Q and S to R
C P must be connected to R and Q to S
D P and Q must be connected to R.


The answer would be a as znso4 wold breakdown into zn 2and so42-ions .the zn 2 would be attracted towards cathode(negative terminal) so p would be attached to negative terminal and therefore the answer is a.

Ans 1:

Class : Class 8
cation(Zn2 ) must be deposited to the cathode.

Ans 2:

Class : Class 3
And for this question must be A

Ans 3:

Class : Class 9
the answer is wrong.....it should be a

Ans 4:

Class : Class 9
thus answer is a

Ans 5:

Class : Class 9
my apologies for the previous explanation answer is : C

Ans 6:

Class : Class 8

Ans 7:

Class : Class 8
WWWWRRRROOOONNNNNNNNNNGGGGGGGGGGGGGGGGG

Ans 8:

Class : Class 9
In reactivity series hydrogen is below zinc and is less reactive than zinc. As hydrogen below zinc therefore will reduce more and earlier than zinc , hence will go to cathode and zinc will reduced or deposit at anode. therefore P will be connected to R and Q to S.hence ans is :C

Ans 9:

Class : Class 8
the answer will be 'A'

Ans 10:

Class : Class 8
answer A

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Subject :NSO    Class : Class 3

A note is shown here which Ravi has made about different types of house. Unfortunately when he had finished writing, some ink spilt over the page and covered some of the key words.
A wooden house made on a boat is called . It is common in Kashmir and . In areas with heavy rainfall houses are common. are built of snow and are found in very cold countries.
Select the correct sequence of hidden words to complete the note.

A Caravan, Rajasthan, Tent, Igloos
B Houseboat, Kerala, Stilt, Igloos
C Houseboat, Delhi, Kutcha, Igloos
D Tent, Karnataka, Caravan, Igloos


Ans 1:

Class : Class 3
B

Ans 2:

Class : Class 3

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