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Chemistry

Chemistry
In silvery paints, the main constituent present is

Aluminium powder
White lead
Silver powder
Lead powder

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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

x/6
5x/36
5x
7.2 x

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Chemistry
Lead pencil contains

Graphite
Ferrous sulphide
Lead
Lead sulphide

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Chemistry
Which of the following elements is not present in stainless steel?

Iron
Tungsten
Chromium
Nickel

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Chemistry
Which one is a sublime substance?

Iodine
Potassium Iodide
Sugar
Table salt

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Chemistry
The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil is

engenol
cineole
geraniol
limonene

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MORE MCQ ON Chemistry

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