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Chemistry

Chemistry
The iron ore which contains 72% of iron is :

Limonite
Siderite
Magnetite
Haematite

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Chemistry
Silica gel is a

Flavouring agent
Moisturizer
Drying agent
Delicious food

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Chemistry
Organic compounds are

Co-ordination compounds
Interstitial compounds
Covalent compounds
Ionic compounds

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Chemistry
Inert gases are

Chemically very active
Chemically unreactive
Miscible with water
Not stable

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Chemistry
Which one of the following has a maximum tendency to form M3 ion ?

As
Bi
P
N

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Chemistry
Highly toxic gas which causes headache, visual difficulty, paralysis and even death is

CO
All of these
CO2
O3

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