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Chemistry

Chemistry
Which substance is used to retard the setting action of cement?

CaSO4, 2H2O
Al2O3
Na2O + K2O
CaO

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Chemistry
The heaviest naturally occurring element is:

Thorium
Uranium
Polonium
Mercury

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

Siderite
Limonite
Haematite
Magnetite

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Chemistry
The temperature of oxy-acetylene flame is around

3200°C
2800°C
3600°C
4000°C

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Chemistry
The iron ore magnetite consists of

Fe2O3
FeCO3
3Fe2O3 .. 3H2O
Fe3OH4

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Chemistry
Which one of the following is found in Vinegar ?

Acetic acid
Butyric acid
Formic acid
Propionic acid

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MORE MCQ ON Chemistry

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