Which is characteristic to a Lewis base?

React with metal to produce hydrogen gas

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Donate an unshared electron pair

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Always contain the hydroxide ion in its structure

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Taste sour

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Formed by the reaction of a nonmetal oxide and water

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Solution

The correct option is B Donate an unshared electron pair
According to the definition of the Lewis base, Lewis base the species which donate a lone pair of electron.
Thus, option B is the correct answer.

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Similar questions

Q. A metallic oxide reacts with water to form its hydroxide, hydrogen peroxide and also liberates oxygen. The metallic oxide could be :

Q. Which of the following metal reacts with water/steam to produce oxide instead of hydroxide?

Q. Which among the following statements is incorrect for magnesium metal?

(a) It burns in oxygen with a dazzling white flame.
(b) It reacts with cold water to form magnesium oxide and evolves hydrogen gas.
(c) It reacts with hot water to form magnesium hydroxide and evolves hydrogen gas.
(d) It reacts with steam to form magnesium hydroxide and evolves hydrogen gas.

Give one example in each case :

(a) A basic oxide which is soluble in water,

(b) A hydroxide which is highly soluble in water,

(d) A hydroxide which is insoluble in water,

(e) A weak mineral acid,

(f) A base which is not an alkali,

(g) An oxide which is a base,

(h) A hydrogen containing compound which is not an acid,

(i) A base which does not contain a metal ion.

(b) Choose the correct answer from the choices (A), (B), (C) and (D):
(i) The property which is characteristic of an electrovalent compound is that:
(A) it is easily vaporized
(B) it has a high melting point
(C) it is a weak electrolyte
(D) it often exists as a liquid
(ii) When a metal atom becomes an ion:
(A) it loses electrons and is oxidized
(B) it gains electrons and is reduced
(C) it gains electrons and is oxidized
(D) it loses electrons and is reduced
(iii) Which of the following hydroxides is not an alkali?
(A) ammonium hydroxide
(B) calcium hydroxide
(C) copper hydroxide
(D) sodium hydroxide

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Which is characteristic to a Lewis base?

The correct option is B Donate an unshared electron pairAccording to the definition of the Lewis base, Lewis base the species which donate a lone pair of electron.Thus, option B is the correct answer.

The correct option is B Donate an unshared electron pair
According to the definition of the Lewis base, Lewis base the species which donate a lone pair of electron.
Thus, option B is the correct answer.