107
Q:

Boron cannot form which one of the following anions?

(1) BO2-

(2) BF63-

(3) BH4-

(4) B(OH)4-

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

Answer:   B) Option 2



Explanation:

Due to absence of low lying vacant d orbital in B, sp3d2hybridization is not possible hence BF63-will not formed. 

Subject: Chemistry
Exam Prep: AIEEE
Q:

The force that a neutron exerts on a proton inside an atom is:

A) Tidal force B) Gravitational force
C) Electrostatic force D) Nuclear force
 
Answer & Explanation Answer: D) Nuclear force

Explanation:
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1 1152
Q:

Which gas contributes most to the Greenhouse effect?

A) Water vapour B) Ozone
C) Oxygen D) Nitrogen
 
Answer & Explanation Answer: A) Water vapour

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams , CAT

1 998
Q:

Which of the following molecules is joined by a double covalent bond?

A) Cl2 B) O2
C) N2 D) He2
 
Answer & Explanation Answer: B) O2

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0 1210
Q:

Release of which among the following is the primary reason for depletion of the ozone layer?

A) Nitrous oxide B) Hydrogen dioxide
C) Chlorofluro carbon D) Carbon monoxide
 
Answer & Explanation Answer: C) Chlorofluro carbon

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Exam Prep: AIEEE , Bank Exams

0 1128
Q:

Which one of the following is a bad Thermal Conductor?

A) Aluminium B) Copper
C) Glass D) Silver
 
Answer & Explanation Answer: C) Glass

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Filed Under: Chemistry
Exam Prep: Bank Exams

0 826
Q:

Rusting is _____.

A) Electrolysis B) Oxidation
C) Redox reaction (Oxidation and Reduction) D) Reduction
 
Answer & Explanation Answer: C) Redox reaction (Oxidation and Reduction)

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Exam Prep: Bank Exams

2 1160
Q:

Which amongst the following is not a Cation?

A) Aluminium ion B) Copper ion
C) Sulphate ion D) Zinc ion
 
Answer & Explanation Answer: C) Sulphate ion

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Exam Prep: Bank Exams

0 1193
Q:

Which of the following is not a component of Smog?

A) Volatile organic compounds B) Nitrogen Oxide
C) Sulphur dioxide D) Chlorine oxide
 
Answer & Explanation Answer: D) Chlorine oxide

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Exam Prep: Bank Exams

0 984