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Test: Alkaline Earth Metals and its properties - JEE MCQ


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20 Questions MCQ Test Chemistry for JEE Main & Advanced - Test: Alkaline Earth Metals and its properties

Test: Alkaline Earth Metals and its properties for JEE 2024 is part of Chemistry for JEE Main & Advanced preparation. The Test: Alkaline Earth Metals and its properties questions and answers have been prepared according to the JEE exam syllabus.The Test: Alkaline Earth Metals and its properties MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Alkaline Earth Metals and its properties below.
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Test: Alkaline Earth Metals and its properties - Question 1

Aqueous solution of a group 2 element is precipitated by adding , then this precipitate is tested on flame, no light in visible region is observed, this element can be

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Electrons in due to its small size are tightly bound so they cannot be excited by the flame.

Test: Alkaline Earth Metals and its properties - Question 2

Alkaline earth metals combine with halogens to form:​

Detailed Solution for Test: Alkaline Earth Metals and its properties - Question 2

Alkaline earth metals have valency +2. So on reaction with halogen, they form compounds MX2.

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Test: Alkaline Earth Metals and its properties - Question 3

is soluble in water whereas fluorides of other alkaline earth metals are insoluble because of

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being small in size is heavily hydrated and heat of hydration exceeds the lattice energy. Hence is soluble in water.

Test: Alkaline Earth Metals and its properties - Question 4

Which category of salts of alkaline earth metals is not found in solid sate, but found in solution state?

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The bicarbonates of alkaline earth metals exist in solution only.

Test: Alkaline Earth Metals and its properties - Question 5

Among the given statements, the incorrect one is

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Hydrated ion exists as

Test: Alkaline Earth Metals and its properties - Question 6

Amongst the following hydroxides, the one which has the lowest value of is :

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is insoluble in water and thus has lower value of

Test: Alkaline Earth Metals and its properties - Question 7

reacts with water forming propyne gas. ions has:

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The structure of ion is
i.e, bonds.

Test: Alkaline Earth Metals and its properties - Question 8

Metallic magnesium is prepared by

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Cation Anion Anode
Cathode

Test: Alkaline Earth Metals and its properties - Question 9

A compound (A) is used in preparation of washing soda to recover ammonia in Solvay's process. When is bubbled through an aqueous solution of , the solution turns milky. It is used in white washing due to disinfectant nature. What is the chemical formula of A?

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Test: Alkaline Earth Metals and its properties - Question 10

Substance which absorbs and violently reacts with with Hissing sound is :

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hissing sound and

Test: Alkaline Earth Metals and its properties - Question 11

The metal is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen is released on treatment with water. The metal is :

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Test: Alkaline Earth Metals and its properties - Question 12

Two metals and belong to the same group of the periodic table. Metal (A) forms an insoluble oxide but a soluble sulphate, metal (B) forms a soluble oxide but an insoluble sulphate. Both metals (A) and (B) form hydroxides which are soluble in alkalis. (A) and (B) are

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is insoluble, whereas is soluble, whereas is soluble, but is insoluble.

Test: Alkaline Earth Metals and its properties - Question 13

Calcium imide on hydrolysis gives gas (B) which on oxidation by bleaching powder gives gas . Gas (C) on reaction with magnesium give compound (D) which on hydrolysis gives again gas (B). Identify (B), (C) and (D).

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Test: Alkaline Earth Metals and its properties - Question 14

Which one is the correct statement with reference to solubility of in water?

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is the only alkaline earth metal sulphate which is soluble in water and for solubility hydration energy should be greater than lattice energy.

Test: Alkaline Earth Metals and its properties - Question 15

A solid compound ' ' on heating gives gas and a residue. The residue mixed with water forms 'Y'. On passing an excess of through ' ' in water, a clear solution 'Z' , is obtained. On boiling 'Z', compound 'X' is reformed. The compound is

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The given properties coincide with

Test: Alkaline Earth Metals and its properties - Question 16

The difference of number of water molecules in gypsum and plaster of Paris is

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Gypsum is , where as plaster of paris is
No. of water or
molecule

Test: Alkaline Earth Metals and its properties - Question 17

Which of the following alkaline earth metal sulphates is the most soluble in water?

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The solubility of sulphates decreases down the group.

Test: Alkaline Earth Metals and its properties - Question 18

What are the products formed when an aqueous solution of magnesium bicarbonate is boiled?

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Test: Alkaline Earth Metals and its properties - Question 19

is soluble in water because

Detailed Solution for Test: Alkaline Earth Metals and its properties - Question 19

As we move down the group, the atomic radius of elements increases, as a result of which lattice energy decreases. But with an increase in size the hydration, the energy also decreases.

For a compound to be soluble in water, its hydration energy should be higher than its lattice energy, so, as to supply the energy required to break the lattice structure.

is soluble because its hydration energy is higher than the lattice energy.

Test: Alkaline Earth Metals and its properties - Question 20

The thermal stability of and decreases in the order:

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As we move down the group alkaline earth metal carbonates require more heating to decompose, so carbonates become more thermally stable down the group.

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