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An ornament of gold having 75% of gold, ...

An ornament of gold having 75% of gold, is of ______carat.

A

18

B

16

C

24

D

20

Text Solution

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The correct Answer is:
A
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BANSAL-D AND F BLOCK ELEMENTS-Exercise-1 (Single Correct Choice Type)
  1. Cr(2)O(7)^(2-)underset(Y)overset(X)hArr 2CrO(4)^(2-)X and Y are respec...

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  2. CrO(3) dissolves in aqueous NaOH to give:

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  3. An ornament of gold having 75% of gold, is of carat.

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  4. Solution of MnO(4)^(-) is purple-coloured due to :

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  5. Transition elements having more tendency to form complex than represen...

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  6. uarr Y(g)overset(KI)(larr)CuSO(4)overset(dilH(2)SO(4))(rarr)X(Bluecolo...

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  7. The actinoids exhibit more number of oxidation states in general than ...

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  8. x,y and z are respectively

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  9. underset(("bot"))(Cu+conc.HNO(3))toCu(NO(3))(2)+X (oxide of nitrogen...

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  10. Pick out the incorrect statement:

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  11. The metals present in insulin and haemoglobin are respectively:

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  12. Metre scales are madeup of alloy:

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  13. A metal M which is not affected by strong acids like conc. HNO(3),conc...

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  14. underset(("Acidified"))(KMnO(4))+HCltoH(2)O+X(g),X is a:

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  15. Amongst the following species, maximum covalent character is exhibited...

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  16. Number of moles of K(2)Cr(2)O(7) can be reduced by 1 mole of Sn^(2+) i...

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  17. Pick out the incorrect statement:

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  18. The aqueous solution of CuCrO(4) is green because it contains:

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  19. The aqueous solution of the following salts will be coloured in the ca...

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  20. Rusting of iron in moist air involves-

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