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Chemical Process

Chemical Process
Main constituents of portland cement are calcium aluminate and

Carbonates
Sodium silicate
Gypsum
Silicates

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Chemical Process
Which of the following contains least amount of N₂?

Coke oven gas
Water gas (blue gas)
Producer gas
Blast furnace ga

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Chemical Process
A 'unit process' is exemplified by the

Humidification
Absorption
Hydrogenation of oils
Distillation

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Chemical Process
Iron ore hametite is concentrated using

Gravity separation
Roasting
Electro magnetic separation mainly
Froth floatation

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Chemical Process
Synthesis gas is a mixture of

CO₂ and H₂
CO and H₂
H₂, CH₄ and CO
N₂ and H₂

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Chemical Process
Flexible foam (for mattresses) is usually made of

Polyurethanes
Silicone
Polyamides
PVC

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