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Micro-cosmic salt is : d a2 HPO4 . 2 H2...

Micro-cosmic salt is : `d a_2 HPO_4 . 2 H_2 O`, `(NH_4)_2 HPO_4: 2 H_2 O`, `Na(NH_4) HPO_4 . 4 H_2 O)`, , None of these

A

d a_2 HPO_4 . 2 H_2 O'

B

(NH_4)_2 HPO_4: 2 H_2 O'

C

Na(NH_A) HPO_4 . 4 H_2 O)'

D

None of these

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The correct Answer is:
C
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V PUBLICATION-THE s- BLOCK ELEMENTS-QUESTION BANK
  1. Compared with alkaline earth metals, the alkali metals exhibit. : .

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  2. Which is maximum basic in the following?

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  3. Micro-cosmic salt is : d a2 HPO4 . 2 H2 O, (NH4)2 HPO4: 2 H2 O, Na(NH...

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  4. Which has the maximum lattice energy?

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  5. The affinity of sodium with water is used in : drying of alcohols, dr...

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  6. Which is maximuim reactive towards water?

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  7. Which has the maximum electropositive character? Cu Cs Ba Cr

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  8. The electronic configuration of a metal 'M' is '1 s^2 s^2 2 p^6 3 s^1'...

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  9. The basic character of the oxides, Mg O, SrO, K2O, NiO' and 'CS2 O inc...

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  10. Which of the following'are arranged in increasing order of solubilitie...

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  11. The compound insoluble in acetic acid is ?

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  12. Which of the following is not an ore of lithium? Petalite, Triphylite...

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  13. Down's process is used for the extraction of Na Li Ba Mg

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  14. Which of the following is not an important constituent of cement? C a ...

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  15. All the folowing substances react with water. The pair which'gives the...

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  16. Solvay process is used for the manufacture of NaOH' 'Na2 CO3' NH3' ...

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  17. Magnesium is present in

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  18. Plaster of Paris is chemically

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  19. Quicklime is :

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  20. Slaked lime reacts with chlorine to give CaCl2' CaO' CaOCl2' CaCO3'

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