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Chemistry

Chemistry
Which one is the most reactive gaseous element

Iodine
Bromine
Flourine
Chlorine

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Chemistry
Which of the following processes is used for the production of Biodiesel ?

Transamination
Transesterification
Translation
Transcription

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Chemistry
If the equilibrium constants for the systems H2 + I2 ? 2HI and 2HI ? H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is :

K1 = K2
K1 = K2/2
K1 = 2K2
K 1 = 1 /K2

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Chemistry
The most abundant element in the human body is

Nitrogen
Oxygen
Iron
Carbon

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Chemistry
Which of the following is a natural polymer?

Nylon
Bakelite
Starch
Polythene

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Chemistry
The buffer action of blood is due to the presence of

HCI and NaCI
CI– and [CO3]2–
CI– and [HCO3]–
[HCO3]– and H2CO3

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