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Chemistry

Chemistry
Which of the following is used as non-stick coating for cooking utensils?

Styrofoam
Perspex
Polystyrene
Teflon

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Chemistry
Aspirin is chemically known as

Methyl salicylate
Alkylsalicylic acid
Acetylsalicylic acid
Hydroxysalicylate

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Chemistry
Aspirin is common name of

Salicylate
Methyl Salicylate
Acetyl Salicylic Acid
Salicylic Acid

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Chemistry
Which among the following is liquid non-metal ?

Mercury
Bromine
Alcohol
Water

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Chemistry
The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is

5x
x/6
5x/36
7.2 x

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Chemistry
The trans-uranium elements are the chemical elements with atomic numbers greater than

89
92
96
86

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