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Chemistry

Chemistry
The molecule which has the highest percentage of ionic character among the following is

HCI
HF
HI
HBr

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Chemistry
Bauxite is used as raw material by which industry ?

Gold
Steel
Aluminium
Iron

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Chemistry
The gas that causes suffocation and death when coal or coke is burnt in a closed room is

Carbon monoxide
Ethane
Carbon di-oxide
Methane

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Chemistry
Solder metal is an alloy of

Copper and zinc
Lead and antimony
Copper and tin
Lead and tin

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Chemistry
Which component referred to as 'Milk sugar'?

Sucrose
Maltose
Lactose
Galactose

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Chemistry
The smog is essentially caused by the presence of

O2 and N2
O3 and N2
O2 and O3
Oxides of N and S

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