106
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:

Atomic number of which of the following elements is greater than that of Aluminium?

A) Phosphorus B) Neon
C) Magnesium D) Sodium
 
Answer & Explanation Answer: A) Phosphorus

Explanation:
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2 989
Q:

Chemical Formula of Water is _____ .

A) O2H B) OH
C) HO D) H2O
 
Answer & Explanation Answer: D) H2O

Explanation:
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0 1177
Q:

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

A) Ar B) HN3
C) CO2 D) C4H6
 
Answer & Explanation Answer: C) CO2

Explanation:
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0 1065
Q:

Sulphur and Chlorine can have what type of a bond?

A) Polar covalent B) Polyionic
C) Non­-polar covalent D) Ionic
 
Answer & Explanation Answer: A) Polar covalent

Explanation:
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0 875
Q:

Covalent Bond is also called _________.

A) Molecular Bond B) Proton Bond
C) Nucleus Bond D) Electron Bond
 
Answer & Explanation Answer: A) Molecular Bond

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0 1015
Q:

Which of the following constitutes highest percentage of Green House gases?

A) Ethane B) Methane
C) Carbon Dioxide D) Propane
 
Answer & Explanation Answer: C) Carbon Dioxide

Explanation:
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0 893
Q:

Benzene is ______ in ethyl alcohol.

A) soluble B) solute
C) insoluble D) insolate
 
Answer & Explanation Answer: C) insoluble

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0 1038
Q:

The Chemical formula of Ammonium oxalate is _____.

A) NH4C2O4 B) (NH4)2CO4
C) (NH4)2C2O4 D) (NH4)2C2O3
 
Answer & Explanation Answer: C) (NH4)2C2O4

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1 905