Question # 1

Which one of the following is not an alkali metal?

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Francium

Caesium

Rubidium

Radium

II-A group element are called:

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s-block elements

p-block elements

d-block elements

f-block elements

All alkali metals react with acetylene to form acetylides except:

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Li

Na

K

Rb

Diaphragm cell is used to prepare

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sodium

sodium hydroxide

calcium

magnesium

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

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Be

Ra

Ba

Rn

Which is insoluble carbonate?

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KCO₃

CaCO₃

Na₂CO₃

K₂CO₃

Arabic word "alkali" means:

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The ashes

the sour

The fragrant

Caustic

Carbonates of alkaline earth metals decomposes to respective metal

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oxides

nitrates

sulphates

CO₂

Down's cell is used to prepare:

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Sodium carbonate

Sodium bicarbonate

Sodium metal

Sodium hydroxide

the oxides of beryllium are:

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acidic

basic

amphoteric

None of these

Transition elements belong to

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I-A & II-A

III-A to VIII-A

I-B to X-B

Lanthanides

Lime is often used as an agent:

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dehydrating

hydrating

oxidizing

reducing

Which oxide is insouluble

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Li₂O

Na₂O

K₂O

BaO

s-block elements belong to groups

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I-A & II-A

III-A to VIII-A

I-B to X-B

Lanthanides

Milk of lime is

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MgO

CaO

Ca(OH)₂

Mg(OH)₂

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

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

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Be

Re

Ba

Rn

Gypsom added in cement is

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1%

2%

3%

4%

Gypsom added in cement is:

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1%

2%

3%

4%

alkaline metal have electrons in s-orbitals:

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One

Two

three

Four

The oxides of beryllium are

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acidic

basic

amphoteric

none of these

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

Which is plaster of paris?

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CaSO₄.H₂O

(CaSO₄)₂.H₂O

CaSO₄.2H₂O

CaSO₄.3H₂O

Alkali metals have electrons in s-orbital:

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one

two

three

Four

Cement plaster is made by mixing plaster of paris with:

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glue or oil

gypsom

glycol

alum or borax

Which one is alkali metal in them?

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Rubidium

Magnesium

Calcium

Barium

Cement plaster is made by mixing plaster of paris with

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glue or oil

gypson

glycol

alum or borax

The element caesium bears resemblance with:

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Ca

Cr

Both of the above

None of these

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