Boron cannot form which one of the following anion | Chemistry Questions & Answers

Q:

What is formed when helium atom loses one electron?

A) Proton	B) Positive helium ion
C) Negative helium ion	D) Alpha particle

Answer & Explanation Answer: B) Positive helium ion

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Q:

The mass of one molecule of oxygen is

A) 2.3 x 10-23 g	B) 3.3 x 10-23 g
C) 4.3 x 10-23 g	D) 5.3 x 10-23 g

Answer & Explanation Answer: D) 5.3 x 10-23 g

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Q:

Which of the following is used in the preparation of tincture iodine, cough syrup and many tonics?

A) Methanol	B) Ethanoic acid
C) Acetic acid	D) Ethanol

Answer & Explanation Answer: D) Ethanol

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Q:

According to Newlands' law of Octaves, how many elements exist in nature?

A) 56	B) 66
C) 55	D) 65

Answer & Explanation Answer: A) 56

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Q:

Which of the following metals reacts vigorously with cold water?

A) Potassium	B) Aluminium
C) Zinc	D) Iron

Answer & Explanation Answer: A) Potassium

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Q:

The number of electrons that can be accommodated in the M shell is

A) 18	B) 8
C) 2	D) 32

Answer & Explanation Answer: A) 18

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Q:

When electricity is passed through an aqueous solution of Sodium Chloride (brine), it decomposes to form.

A) NaOH + H2 + Cl2	B) NaOH + H2 + O2
C) NaOH + HCl + H2	D) NaOH + H2 + N2

Answer & Explanation Answer: A) NaOH + H2 + Cl2

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Q:

Which of the following can undergo sublimation?

A) Ammonium chlorate	B) Ammonium sulphate
C) Ammonium chloride	D) Ammonium sulphide

A) Option 1	B) Option 2
C) Option 3	D) Option 4

Boron cannot form which one of the following anions?

(1) $B O_{2}^{-}$

(2) $B F_{6}^{3 -}$

(3) $B H_{4}^{-}$

(4) $B (O H)_{4}^{-}$

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Boron cannot form which one of the following anions? (1) BO2- (2) BF63- (3) BH4- (4) B(OH)4-

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Boron cannot form which one of the following anions?

(1) $B O_{2}^{-}$

(2) $B F_{6}^{3 -}$

(3) $B H_{4}^{-}$

(4) $B (O H)_{4}^{-}$