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Chemistry

Chemistry
Which one is a naturally occuring noble gas

Boron
Potassium
Sodium
Argon

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Chemistry
"Paramagnetism" is the property of

Completely vacant electronic subshells
Unpaired electrons
Completely filled electronics subshells
Paired electrons

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Chemistry
Milk is a

None of these
Metal
Mixture
Element

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Chemistry
The chemical used in embalming biological materials is

Ethylene glycol
Formaldehyde in water
Gaseous formaldehyde
Formaldehyde in methanol

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Chemistry
Charcoal is used in water treatment as a/an

Adsorbent
Solvent
Coagulant
Absorbent

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Chemistry
Poison used for killing rats is

Magnesium nitride (Mg3N2)
Magnesium phosphide (Mg3P2)
Calcium phosphide (Ca3P2)
Zinc phosphide (Zn3P2)

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