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Chemistry

Chemistry
Which of the following is not a noble gas ?

Neon
Hydrogen
Helium
Argon

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Chemistry
Cyanide poisoning causes death in seconds because

It causes Lysis of red blood cells
It denatures enzymes of the heart/muscle
It causes cardiac arrest
It breaks the electron transport chain

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Chemistry
Sodium Carbonate is commonly known as

Washing Soda
Caustic Potash
Caustic Soda
Baking Soda

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Chemistry
Which of the following statements are correct about chloroform? a. Liquid fuel b. Anaesthetic in nature c. Produces phosgene d. Fire extinguisher

D, a
A, c
B, c
A, b

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Chemistry
The function of sedimentation tank in sewage treatment is to:

Remove suspended solids
Remove water content
Disinfect the sewage
Aerate the sewage

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Chemistry
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

4.05 gram
3.05 gram
5.05 gram
2.05 gram

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