Question # 1

Which one is not use of lime

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Extraction of metals

Ceramic industry

Preparation of bleaching powder

Preparation of gypsum

Ca Mg3 (SiO3)2 is the composition of.

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Dolomite

Gypsum

Calcite

Asbestos

The mineral CaSO₄.2H₂O has the general name

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Dolomite

Gypsum

Calcite

Epsom Salt

Which one of the following does not belong to alkaline earth metals

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Be

Ra

Ba

Rn

Setting of Plaster of Paris is accompanied with

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Hydrogen bonding

Hydration

Dehydration

None of these

Which ion will have the maximum value of heat of hydration.

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Na+

Ca+

Ba+2

Mg+2

The oxide of beryllium is

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Acidic

Basic

Amphoteric

None of these

Oxide of Alkaline earth metal are

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Acid

Basic

Neutral

Amphoteric

The word alkali is derived from which language

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Arabic

Greek

French

German

Which one of the following has lowest first ionization energy.

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Li

Na

Rb

Cs

The oxides of beryllium are

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Basicity

Rancidity

Amphoteric

none of all

Which element reacts with carbon to form metal carbide.

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Li

Na

K

All of these

Magnesium metal does not burn in the jar of

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N2

O2

Ne

N2 and O2

Nelson's cell is used to prepare

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NaOH

Na₂CO₃

Na metal

NaCl

------------- does not belong to Alkaline-Earth metals

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Be

Ra

Ba

Rn

Which of the following sulphates is not soluble in water.

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Sodium sulphate

Potassium sulphate

Zinc sulphate

Barium Sulphate

The Milk of magnesia is used for the treatment of

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Basicity

Rancidity

Acidity

Jaundance

Dolomite is a carbonate of

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Be

Mg

Na

Ba

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