11th Chemistry Weekly Test - 4 ( Alkali and Alkaline Earth Metals )

MABS Institution

11th Chemistry Weekly Test - 4 ( Alkali and Alkaline Earth Metals )-Aug 2020

Time : 1.30 Hours

Part - A

Generic 3 - Answer All Question

Write balanced equations for reactions between
(i) Na₂O₂ and water
(ii) KO₂ and water
(iii) Na₂O and CO₂

What is meant by 'diagonal relationship' in periodic table? Why is it so?

Why does beryllium form BeCI₂ although it has no unpaired electrons?

What is retrograde solubility?

Alkali metals exhibit high chemical reactivity. Give reason

Mention about the uses of barium.

Complete and balance the following equations.
(i) Li + H₂O u27f6 ...,
(ii) Na + C₂H₅OH u27f6 ...,
(iii) CH ≡ CH + Na u27f6 ...,

Write balanced chemical equation for each of the following chemical reactions.
(i) Lithium metal with nitrogen gas
(ii) heating solid sodium bicarbonate
(iii) Rubidum with oxgen gas
(iv) solid potassium hydroxide with CO₂
(v) heating calcium carbonate
(vi) heating calcium with oxygen

Be and Mg do not give colour to flame whereas other alkaline earth metals do so. Why?

Write note on the preparation of (i) BeF₂ (ii)BeCl₂ (iii) BeH₂

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11th Chemistry Weekly Test - 4 ( Alkali and Alkaline Earth Metals )

MABS Institution

11th Chemistry Weekly Test - 4 ( Alkali and Alkaline Earth Metals )-Aug 2020

Part - A

Generic 3 - Answer All Question

Write balanced equations for reactions between (i) Na2O2 and water (ii) KO2 and water (iii) Na2O and CO2

What is meant by 'diagonal relationship' in periodic table? Why is it so?

Why does beryllium form BeCI2 although it has no unpaired electrons?

What is retrograde solubility?

Alkali metals exhibit high chemical reactivity. Give reason

Mention about the uses of barium.

Complete and balance the following equations. (i) Li + H2O u27f6 ..., (ii) Na + C2H5OH u27f6 ..., (iii) CH ≡ CH + Na u27f6 ...,

Write balanced chemical equation for each of the following chemical reactions. (i) Lithium metal with nitrogen gas (ii) heating solid sodium bicarbonate (iii) Rubidum with oxgen gas (iv) solid potassium hydroxide with CO2 (v) heating calcium carbonate (vi) heating calcium with oxygen

Be and Mg do not give colour to flame whereas other alkaline earth metals do so. Why?

Write note on the preparation of (i) BeF2 (ii)BeCl2 (iii) BeH2

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Other Study material

11th Chemistry Weekly Test - 4 ( Physical and Chem

11th Chemistry Monthly Test - 1 ( Physical and Che

11th Chemistry Monthly Test - 2 ( Physical and Che

11th Chemistry Monthly Test - 3 ( Physical and Che

11th Chemistry Monthly Test - 4 ( Physical and Che

11th Chemistry Weekly Test - 1 ( Solutions )

11th Chemistry Weekly Test - 2 ( Solutions )

11th Chemistry Weekly Test - 3 ( Solutions )

11th Chemistry Weekly Test - 4 ( Solutions )

11th Chemistry Monthly Test - 1 ( Solutions )

11th Chemistry Monthly Test - 2 ( Solutions )

11th Chemistry Monthly Test - 3 ( Solutions )

11th Chemistry Monthly Test - 4 ( Solutions )

11th Chemistry Weekly Test - 1 ( Chemical bonding

11th Chemistry Weekly Test - 2 ( Chemical bonding

Tamilnadu Stateboardszs - Class

Write balanced equations for reactions between
(i) Na₂O₂ and water
(ii) KO₂ and water
(iii) Na₂O and CO₂

Why does beryllium form BeCI₂ although it has no unpaired electrons?

Complete and balance the following equations.
(i) Li + H₂O u27f6 ...,
(ii) Na + C₂H₅OH u27f6 ...,
(iii) CH ≡ CH + Na u27f6 ...,

Write balanced chemical equation for each of the following chemical reactions.
(i) Lithium metal with nitrogen gas
(ii) heating solid sodium bicarbonate
(iii) Rubidum with oxgen gas
(iv) solid potassium hydroxide with CO₂
(v) heating calcium carbonate
(vi) heating calcium with oxygen

Write note on the preparation of (i) BeF₂ (ii)BeCl₂ (iii) BeH₂