Given an element having following ionisation enthalpies IE1 = 496 kJ/m

1.	Given an element having following ionisation enthalpies IE1 = 496 kJ/mol and IE2 = 4562 kJ/mol one mole hydroxide of this element is treated separated with HCl and H2SO4 respectively. Moles of HCl and H2SO4 reacted respectively is(1) 1, 0.5 (2) 0.5, 1 (3) 2, 0.5 (4) 0.5, 2
Answer» The answer is (1) 1, 0.5 According to the given data of I.E, This element must belong to group 1 and thus is monovalent & form hydroxide of the type M(OH). MOH + HCl→MCl + H₂O 1 mole 1 mole 2MOH + H₂SO₄→ M₂SO₄ + H₂O 1 mole 1/2 mole.

Given an element having following ionisation enthalpies IE1 = 496 kJ/mol and IE2 = 4562 kJ/mol one mole hydroxide of this element is treated separated with HCl and H2SO4 respectively. Moles of HCl and H2SO4 reacted respectively is(1) 1, 0.5 (2) 0.5, 1 (3) 2, 0.5 (4) 0.5, 2

Answer»

The answer is (1) 1, 0.5

According to the given data of I.E, This element must belong to group 1 and thus is monovalent & form hydroxide of the type M(OH).

MOH + HCl→MCl + H₂O

1 mole 1 mole

2MOH + H₂SO₄→ M₂SO₄ + H₂O

1 mole 1/2 mole.

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Given an element having following ionisation enthalpies IE1 = 496 kJ/mol and IE2 = 4562 kJ/mol one mole hydroxide of this element is treated separated with HCl and H2SO4 respectively. Moles of HCl and H2SO4 reacted respectively is(1) 1, 0.5 (2) 0.5, 1 (3) 2, 0.5 (4) 0.5, 2

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