Sawaal
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
Related Questions
Q:

_______________ is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration.

A) Diffusion B) Osmosis
C) Active Transport D) Passive Transport
 
Answer & Explanation Answer: C) Active Transport

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1002
Q:

Haemoglobin has the highest affinity with which of the following?

A) SO2 B) CO2
C) CO D) NO2
 
Answer & Explanation Answer: C) CO

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 972
Q:

NaCl has ______.

A) nonpolar bonds B) polar covalent bonds
C) Metallic bonds D) ionic bonds
 
Answer & Explanation Answer: D) ionic bonds

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 992
Q:

Which of the following is a Synthetic rubber?

A) Leoprene B) Monoprene
C) Neoprene D) Isoprene
 
Answer & Explanation Answer: C) Neoprene

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 1329
Q:

Which drug is used for Pain Relief?

A) Risedronate B) Tramadol
C) Folic Acid D) Bupropion
 
Answer & Explanation Answer: B) Tramadol

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 829
Q:

Electrons in the highest energy level of an atom are called ________.

A) valence protons B) orbital protons
C) valence electrons D) orbital electrons
 
Answer & Explanation Answer: C) valence electrons

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 902
Q:

What is the Greenhouse Effect?

A) The fall in population of plants due to human activity B) It is the warming of earth's surface due to its atmosphere
C) The polluting effect of burning fossil fuels D) The heating of the atmosphere due to depletion of the ozone layer
 
Answer & Explanation Answer: B) It is the warming of earth's surface due to its atmosphere

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 706
Q:

Beryl is an ore/mineral of

A) Nickel B) Beryllium
C) Lead D) Tin
 
Answer & Explanation Answer: B) Beryllium

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 864