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:

Which of the following is not soluble in water?

A) Lead sulphate B) Zinc sulphate
C) Potassium sulphate D) Sodium sulphate
 
Answer & Explanation Answer: A) Lead sulphate

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1277
Q:

__________gives hardness to stainless steel.

A) Zinc B) Carbon
C) Lead D) Tin
 
Answer & Explanation Answer: B) Carbon

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1005
Q:

The most pure form of carbon among the options is

A) Anthracite B) Lampblack
C) Graphite D) Wood Charcoal
 
Answer & Explanation Answer: A) Anthracite

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1194
Q:

What is the product formed when sodium bicarbonate is heated strongly?

A) Sodium Carbonate B) Sodium Hydroxide
C) Sodium Peroxide D) Sodium Monoxide
 
Answer & Explanation Answer: A) Sodium Carbonate

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1335
Q:

What happens in an oxidation reaction?

A) Protons are lost. B) Electrons are lost
C) Neutrons are lost. D) Electrons are gained.
 
Answer & Explanation Answer: B) Electrons are lost

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 888
Q:

Which among the following has the maximum density?

A) Water B) Ice
C) Ethylene D) Acetone
 
Answer & Explanation Answer: A) Water

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1480
Q:

Bauxite is an ore/mineral of

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1101
Q:

The mass of proton and mass of ________ is same.

A) Neutron B) Electron
C) Isoprone D) Alpha particle
 
Answer & Explanation Answer: A) Neutron

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 1107