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Which one of the following oxides is amp...

Which one of the following oxides is amphoteric ?

A

MgO

B

CaO

C

`Na_(2)O`

D

ZnO

Text Solution

Verified by Experts

The correct Answer is:
D
Our of the given five oxides only ZnO is amphoteric (i.e., acidic as well as basic ) in nature.
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DINESH PUBLICATION-IONIC EQUILIBRIUM -REVISION QUESTIONS FROM COMPETITVE EXAMS
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  2. Which of the following is the buffer solution ?

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  3. Which one of the following oxides is amphoteric ?

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  4. The acid dissociation constant K(a) of acetic acid is 1.74 xx 10^(-5) ...

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  5. 0.365g of HCl gas was passed through 100 cm^(3) of 0.2 M NaOH solution...

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  6. 40 mg of pure sodium hydroxide is dissolved in 10 L of distilled water...

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  7. Which one of the following is not an amphoteric substance ?

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  8. The conjugate base of H(2)PO(4)^(-) is :

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  9. The molar solubility ( in mol L^(-1)) of a sparingly soluble salt MX(4...

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  10. Which is a Lewis base ?

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  11. Which is an amphoteric oxide ?

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  12. pK(a) of CH(3)COOH is 4.74 . The pH of 0.01 M CH(3)COONa IS

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  13. K(sp) for Cr(OH)(2) is 2.7 xx 10^(-13) . What is its solubility in mol...

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  14. The rapid change of pH near the stoichiometric point of an acid-base t...

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  15. The solubility product of a sparingly soluble salt AX(2) is 3.2xx10^(-...

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  16. What is the pH of 0.01 M glycine solution? For glycine, K(a(1))=4.5xx1...

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  17. Which of the following is acidic in nature ?

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  18. At 90^(@)C, pure water has [H(3)O^(o+)] = 10^(-6)M. What is the value ...

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  19. The pH of a buffer solution of 0.1 M NH(4)OH [ pK(a)=4.0] and 0.1 M NH...

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  20. 50 mL of 0.1 M HCl and 50 mL of 2.0 M NaOH are mixed. The pH of the r...

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