AIPMT 2005 | p-Block Elements Question 80 | Chemistry

AIPMT 2005

MCQ (Single Correct Answer)

-1

What is the correct relationship between the pH of isomolar solutions of sodium oxide, Na₂O (pH₁), sodium sulphide, Na₂S (pH₂), sodium srlenide, Na₂Se (pH₃) and sodium telluride Na₂Te (pH₄)?

pH₁ > pH₂ > pH₃ > pH₄

pH₁ > pH₂ $$ \approx $$ pH₃ > pH₄

pH₁ < pH₂ < pH₃ < pH₄

pH₁ < pH₂ < pH₃ $$ \approx $$ pH₄

AIPMT 2005

MCQ (Single Correct Answer)

-1

Which one of the following oxides is expected to exhibit paramagnetic behaviour?

CO₂

SiO₂

SO₂

ClO₂

AIPMT 2004

MCQ (Single Correct Answer)

-1

Among K, Ca, Fe and Zn, the element which can from more than one binary compound with chlorine is

AIPMT 2004

MCQ (Single Correct Answer)

-1

Which one of the following statements about the zeolite is false?

They are used as cation exchangers.

They have open structure which enables them to take up small molecules.

Zeolites are aluminosilicates having three dimensional network.

Some of the SiO$$_4^{4 - }$$ units are replaced by AlO$$_4^{5 - }$$ and AlO$$_6^{9 - }$$ ions in zeolites.

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