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Oxidation States of Lanthanides

Which of the ...

Question

Which of the following is the weakest base?

A

N a O H

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B

C a {(O H)}_{2}

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C

N H_{4} O H

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D

K O H

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Solution

The correct option is B $N H_{4} O H$
The bases formed by alkali and alkaline earth metals are very strong. They dissociate almost completely in aqueous solutions.

$N a O H, C a (O H)_{2}$ and $K O H$ are strong bases while $N H_{4} O H$ is the weakest base of all.

Option C is correct.

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Similar questions

Q. What is meant by strong bases ? Classify into the following into strong bases and weak base:

N H_{4} O H, C a (O H)_{2}, N a O H, K O H, M g (O H)_{2}

Q. Write chemical names from given formulae.
H₂SO_4, Ca(OH)_2, HCl, NaOH, KOH, NH₄OH

Q. What is meant by strong bases and weak bases? Classify the following into strong bases and weak bases:
NH₄OH, Ca(OH)₂, NaOH, KOH, Mg(OH)₂

Q. Which of the following sequence(s) is/are correct for solubility in

H_{2} O ?

(1) B e S O_{4} > M g S O_{4} > C a S O_{4} > B a S O_{4}

(2) B e (O H)_{2} > M g (O H)_{2} > C a (O H)_{2} > B a (O H)_{2}

(3) L i O H < N a O H < K O H < R b O H

(4) L i_{2} C O_{3} < N a_{2} C O_{3} < K_{2} C O_{3} < R b_{2} C O_{3}

Q. Which of the following anions is the weakest base?

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