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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
s Block Elements

NTA Abhyas 2020 · Chemistry · s Block Elements

Two metal P and Q belong to the second group of periodic table. P...

Two metal P and Q belong to the second group of periodic table. P forms insoluble oxide but soluble sulphate Q forms a soluble oxide but insoluble sulphate. Hydroxide of metal P is soluble in NaOH while that of metal Q is insoluble in NaOH. What are metal P and Q?

Options

  1. AP = Be, Q = Ba
  2. BP = Mg, Q = Ca
  3. CP = Ca, Q = Sr
  4. DP = Ba, Q = Mg

Correct answer

A. P = Be, Q = Ba

Step-by-step solution

BeO-Insoluble, BeSO4BeS{O}_{4} -Soluble

BaO-Soluble, BaSO4BaS{O}_{4} -Insoluble

Be( OH )Be{\left(\text{ OH }\right)}_{2}−SolubleinNaOH<br/><br/>-Soluble in NaOH<br/><br/>Ba ( OH{)}_{2} -Insoluble in NaOH
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