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Chemistry

Chemistry
The number of hydrogen bonds between guanine and cytosine in DNA is

3
1
4
2

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Chemistry
Which one of the following statements is not correct? Vulcanisation of rubber makes it

Strong and hard
Soft and flexible
Chemical resistant
Withstand higher temperatures

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Chemistry
The main component of liquid bleach is:

Sodium hypochlorite
Sodium chloride
Hydrochloric acid
Sodium hypochlorate

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Chemistry
Which of the inert gases can form compounds?

Krypton
Argon
Helium
Xenon

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Chemistry
The third shell of an atom can have a maximum of ______ electrons

15
13
18
21

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Chemistry
The National Chemical Laboratory (India) is located in

Pune
Hyderabad
Bangaluru
Mumbai

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