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

Q:

The movement of water molecules through the plasma membrane is called ______.

A) Osmosis	B) Sedimentation
C) Precipitation	D) Transpiration

Answer & Explanation Answer: A) Osmosis

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Q:

Which of the following is NOT a waste material removed from blood in the kidney?

A) Ammonia	B) Carbon dioxide
C) Urea	D) Uric acid

Answer & Explanation Answer: B) Carbon dioxide

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Q:

Which of the following statements are CORRECT?

I. Ethanol is a good solvent for organic compounds.

II. Boiling and melting points of ethanol are low with respect to water.

III. Ethanol is used tincture iodine

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: D) All I, II and III

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Q:

Mass number is always equal to ______.

A) number of protons	B) number of neutrons
C) sum of number of protons and number of electrons	D) sum of number of protons and number of neutrons

Answer & Explanation Answer: D) sum of number of protons and number of neutrons

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Q:

Given in the options are sets of particular characteristics of elements and how they vary across the period and down the group in the following format:

Characteristic of an element - Across the period - Down the group

A) Electropositive Character/metallic character - Increase - Decrease	B) Electropositive Character/metallic character - Increase - Increase
C) Electropositive Character/metallic character - Decrease - Increase	D) Electropositive Character/metallic character - Decrease - Decrease

Answer & Explanation Answer: C) Electropositive Character/metallic character - Decrease - Increase

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Q:

Which of the following statements is/are true or false?

Statements :

A) H2S burns in air to give H2O and SO2

B) The decomposition of Ferrous Sulphate into Fe2O3, SO2 and SO3 occurs in the presence of heat.

A) Statements A and B both are true	B) Statement A is true, while B is false
C) Statements A and B are false	D) Statement B is true, while A is false

Answer & Explanation Answer: A) Statements A and B both are true

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Q:

How many groups and periods are present in the Modern Periodic Table?

A) 9 groups, 9 periods	B) 7 groups, 8 periods
C) 18 groups, 7 periods	D) 8 groups, 7 periods

Answer & Explanation Answer: C) 18 groups, 7 periods

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Q:

Which of the following metals is found in free state?

A) Sodium	B) Gold
C) Potassium	D) Calcium

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