Question # 1

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

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Be

Ra

Ba

Rn

Carbonates of alkaline earth metals decomposes to respective metal

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oxides

nitrates

sulphates

CO₂

Gypsom added in cement is

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1%

2%

3%

4%

Which is insoluble carbonate?

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KCO₃

CaCO₃

Na₂CO₃

K₂CO₃

Gypsom added in cement is:

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1%

2%

3%

4%

Which alkaline earth metal makes peroxide?

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Be

Mg

Ca

Ba

Acidic soils are neutralized by adding:

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Plaster of paris

Brine

Lime

Milk of magnesia

Group VII-A elements are called:

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s-block elements

p-block elements

d-block elements

f-block elements

alkaline metal have electrons in s-orbitals:

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One

Two

three

Four

Which are being formed by alakli metals?

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oxides

nitrides

carbides

peroxides

The element caesium bears resemblance with:

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Ca

Cr

Both of the above

None of these

p-block elements belong to group

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I-A & II-A

III-A to VIII-A

I-B to X-B

Lanthanides

Diaphragm cell is used to prepare

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sodium

sodium hydroxide

calcium

magnesium

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

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Na⁺

Cs⁺

Ba⁺

Mg⁺²

acidic soils are neutralized by adding

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plaster of paris

brine

lime

milk of magnesia

Which are being formed by alkali metals?

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oxides

nitrides

carbides

peroxides

All alkali metals react with acetylene to form acetylides except:

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Li

Na

K

Rb

the oxides of beryllium are:

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acidic

basic

amphoteric

None of these

d-block elements belong to groups

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I-A & II-A

III-A to VIII-A

I-B to X-B

Lanthanides

Maximum shielding effect is observing in

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Li

Be

Mg

Ca

All alkali metals react with acetylene to form acetylides except

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Li

Na

K

Rb

Which oxide is insouluble

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Li₂O

Na₂O

K₂O

BaO

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