Alpha Question Bank for Engineering: Chemistry>Chapter 16 - The s-Block Elements>Exercise-2>Q 22

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Calcium cyanamide on reaction with steam under pressure gives ammonia and ________.

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Important Questions on The s-Block Elements

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Alpha Question Bank for Engineering: Chemistry>Chapter 16 - The s-Block Elements>Exercise-2>Q 26

NaOH + PbO \to X + H_{2} O

NaOH + {SnO}_{2} \overset{Δ}{⟶} y + H_{2} O

NaOH + H_{2} O + Al \overset{Δ}{⟶} z + H_{2}

Sum of the number of atoms present in one molecule each of

x, y, z

is.......... (Assume no complex formation).

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Alpha Question Bank for Engineering: Chemistry>Chapter 16 - The s-Block Elements>Exercise-2>Q 30

$A + B + H_{2} O ⟶ ({NH}_{4}) {HCO}_{3}$
${NH}_{4} {HCO}_{3} + NaCl ⟶ C + {NH}_{4} Cl$
${NH}_{4} Cl + D ⟶ 2 {NH}_{3} + 2 H_{2} O + {CaCl}_{2}$

Sum of the atoms present in one molecule each of $A, B, C$ and $D$ .

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Alpha Question Bank for Engineering: Chemistry>Chapter 16 - The s-Block Elements>Exercise-2>Q 33

Which is/are not correct configuration of

s

-block elements:

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Alpha Question Bank for Engineering: Chemistry>Chapter 16 - The s-Block Elements>Exercise-2>Q 34

The set representing the correct order of first ionisation potential is:

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Alpha Question Bank for Engineering: Chemistry>Chapter 16 - The s-Block Elements>Exercise-2>Q 35

The hydration energy of

{Mg}^{2 +}

ion is higher than that of:

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Alpha Question Bank for Engineering: Chemistry>Chapter 16 - The s-Block Elements>Exercise-2>Q 36

Going down in

II A

group, following properties decrease:

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Alpha Question Bank for Engineering: Chemistry>Chapter 16 - The s-Block Elements>Exercise-2>Q 37

Exceptionally small size of Lithium results in:

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Alpha Question Bank for Engineering: Chemistry>Chapter 16 - The s-Block Elements>Exercise-2>Q 38

Which of the following statement is incorrect?