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

Q:

Butter is colloid formed when

A) Proteins are dispersed in water	B) Water is dispersed in fat
C) Fat globules are dispersed in water	D) Carbohydrates are dissolved in water

Answer & Explanation Answer: C) Fat globules are dispersed in water

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Q:

When ice cubes are made, the entropy of water

A) does not change	B) decreases
C) increases	D) may either increase or decrease depending on the process used

Answer & Explanation Answer: B) decreases

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Q:

Which of the following has pH value 7?

A) Pure Water	B) H2SO4
C) Sodium Carbonate	D) HCl

Answer & Explanation Answer: A) Pure Water

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Q:

Bronze is an alloy of

A) Copper & tin	B) Copper & zinc
C) Copper & iron	D) Iron & nickel

Answer & Explanation Answer: A) Copper & tin

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Q:

Nitrogen fixation is a process of

A) Assimilation of nitrate	B) Utilisation of nitrogen gas
C) Conversion of organic nitrogen to proteins	D) Conversion of molecular nitrogen to ammonia

Answer & Explanation Answer: C) Conversion of organic nitrogen to proteins

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Q:

Absolute Zero is defined as

A) The temperature at which all molecular motion ceases	B) At which water boils at 298K
C) At which liquid Helium boils	D) At which the volume becomes zero

Answer & Explanation Answer: A) The temperature at which all molecular motion ceases

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Q:

Of the following commonly used materials, the one that is not an alloy is

A) Steel	B) Brass
C) Bronze	D) Copper

Answer & Explanation Answer: D) Copper

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Q:

Which method will be employed to test the hardness of water?

A) Boiling	B) Distillation
C) Formation of lather with soap	D) None of these

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