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Mass number of Li, Be and B are 7,9 and ...

Mass number of Li, Be and B are 7,9 and 10 respectively. Which of the following has two electron three protons and four neutrons ?

A

1M NaA

B

1 M NaB

C

1M NaC

D

1M NaD

Text Solution

Verified by Experts

The correct Answer is:
D
`Delta H ` of neutralisation of HD is less So, HD is weak acid.
The anion comes from weak acid undergoes more hydrolysis.
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AAKASH SERIES-IONIC EQUILIBRIUM -ADDITIONAL PRACTICE EXERCISE (LEVEL -II LECTURE SHEET (ADVANCED) (Straight Objective Type Questions))
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  2. What [NH4^(+) ] in a solution that contains 0.02M NH3 (Kb =1.8 xx 10^...

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  3. Mass number of Li, Be and B are 7,9 and 10 respectively. Which of the ...

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  4. The percentage degree of hydrolysis of a salt of weak acid (HA) and we...

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  5. The pH of the resultant solution of 20 ml of 0.1 M H3PO4 and 20 ml 0.1...

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  6. In NaCl is doped with 1 xx 10^(-3) mol percent of SrCl(2) , what is th...

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  7. A saturated solution of Ca3 (PO4) 2 has [Ca^(+2) ]=2xx 10 ^(-8) M an...

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  8. The solubility of Ba3(AsO4)2 (formula weight =690 ) is 6.9 xx 10^(-...

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  9. How many grams of MgC2O4 (formula weight =112 ) will dissolve in 1.5...

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  10. What is the molar solubility of Fe(OH)2 (K(sp) =8.0 xx 10^(-16) ) at ...

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  11. Solubility of AgCl in 0.2 M NaCl is x and that in 0.1 M AgNO3 is y the...

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  12. What mass of Agl will dissolve in 1.0L of 1.0M NH3 ? Neglect change in...

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  13. A 25.0ml sample of 0.1 M HCl is titrated with 0.1 M NaOH . What is the...

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  14. What [NH4^(+) ] in a solution that contains 0.02M NH3 (Kb =1.8 xx 10^...

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  15. The enthalpy of neutralization of four acids HA, HB ,HC and HD with Na...

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  16. The percentage degree of hydrolysis of a salt of weak acid (HA) and we...

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  17. The pH of the resultant solution of 20 ml of 0.1 M H3PO4 and 20 ml 0.1...

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  18. In a saturated solution of AgCl, NaCl is added gradually. The concentr...

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  19. A saturated solution of Ca3 (PO4) 2 has [Ca^(+2) ]=2xx 10 ^(-8) M an...

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  20. The solubility of Ba3(AsO4)2 (formula weight =690 ) is 6.9 xx 10^(-...

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