Choose the weak monobasic acid, among the following

H_{3} B O_{3}

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H_{3} P O_{3}

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H_{3} P O_{4}

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H N O_{3}

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H_{4} P_{2} O_{7}

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Solution

The correct option is B $H_{3} B O_{3}$

$H_{3} B O_{3}$ is a weak Lewis monobasic acid because it can only accept a pair of electron. None of its hydrogens are ionisable.

Note: $H_{3} P O_{3}$ is a dibasic acid, $H_{3} P O_{4}$ is a tribasic acid, $H N O_{3}$ is a strong monobasic acid and $H_{4} P_{2} O_{7}$ is a tetrabasic acid.

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Similar questions

Q. Among the following acids, if number of acids stronger than

H_{3} P O_{4}

x

and number of monobasic acid is

y

then,

\frac{x}{y}

would be?

H_{2} C O_{3}, H_{3} P O_{3}, C H_{3} C O O H, H_{2} S O_{4}, H_{3} P O_{2}, H_{4} P_{2} O_{7}, H C l O_{4}, H_{3} B O_{3}, H N O_{3} .

The total number of diprotic acids among the following is:
$H_{2} S O_{4}, H_{2} C r O_{4}, H_{3} P O_{3}, H_{2} S O_{3}, H_{3} B O_{3}, H_{2} S_{2} O_{7}, H_{3} P O_{4} .$ ___

Q. In how many acids among following, the basicity is greater than

1

H_{3} P O_{4}, H_{3} P O_{3}, H_{3} P O_{2}, H_{3} B O_{3}

Q. Find the total number of diprotic acids among the following

H_{3} P O_{4}, H_{2} S O_{4}, H_{3} P O_{3}, H_{2} C O_{3}, H_{2} S_{2} O_{7}, H_{3} B O_{3}, H_{3} P O_{2}, H_{2} C r O_{4}, H_{2} S O_{3}

H_{3} B O_{3}

is:

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Choose the weak monobasic acid, among the following

The correct option is B H3BO3 H3BO3 is a weak Lewis monobasic acid because it can only accept a pair of electron. None of its hydrogens are ionisable. Note:H3PO3 is a dibasic acid, H3PO4 is a tribasic acid, HNO3 is a strong monobasic acid and H4P2O7 is a tetrabasic acid.