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

Q:

Calcium salts used as fertilizer is:

A) Calcium Carbide	B) Calcium Carbonate
C) Calcium Cyanide	D) Calcium Sulphate

Answer & Explanation Answer: D) Calcium Sulphate

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3 1400

Q:

Which one of the following is an ohmic conductor?

A) Germanium	B) Silicon
C) Carbon	D) Silver

Answer & Explanation Answer: D) Silver

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2 1163

Q:

The commonly used coolant in refrigerators is

A) Ammonia	B) Nitrogen
C) Freon	D) Oxygen

Answer & Explanation Answer: C) Freon

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2 1895

Q:

Phosphorus is kept in water because

A) its ignition temperature is very high	B) its ignition temperature is very low
C) its critical temperature is high	D) its critical temperature is low

Answer & Explanation Answer: A) its ignition temperature is very high

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4 937

Q:

The depletion in Ozone layer is caused by ___________ .

A) Nitrous oxide	B) Carbon dioxide
C) Chlorofluorocarbons	D) Methane

Answer & Explanation Answer: C) Chlorofluorocarbons

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Q:

Name the gas used in preparation of bleaching powder

A) Oxygen	B) Hydrogen
C) Nitrogen	D) Chlorine

Answer & Explanation Answer: D) Chlorine

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0 1082

Q:

Magnesium is a constituent metal of __________

A) Chlorophyll molecule	B) DNA
C) Mitochondria	D) Ribosomes

Answer & Explanation Answer: A) Chlorophyll molecule

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Q:

Researchers at the University of Illinois have discovered new form of matter called Excitonium which was coined by ______ in the 1960’

A) Bertrand Halperin	B) Eugene Wigner
C) Paul Dirac	D) Felix Bloch

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