Copper (Ii) carbonate
Carbon(III) carbonate
Carbon(I) carbonate
Copper carbonate
Explanation not provided, please join discuss, your contributions are welcomed
Hydrogen sulphide
Oxygen
Nitrogen
Carbon dioxide
Explanation not provided, please join discuss, your contributions are welcomed
Quartz Glass (SiO2)
Chrome alum
Silicon carbide (SiC)
Graphite
Explanation not provided, please join discuss, your contributions are welcomed
Triagonal bipyramid
Pentagonal bipyramid
Squuare bipyramid
Tetrahedral
Answer: B) Pentagonal bipyramid
Explanation:
In IF7 out of 7 Flourine atoms 5 of them are placed on a plane in Pentagon shape .In remaining 2 flourines one is placed above the plane and other below the plane each at 90 degrees
Acetylene
Methyl acetylene
Butanol
Decanoic acid
Answer: B) Methyl acetylene
Explanation:
The IUPAC name of the compound is Methyl Acetylene or Propyne.
Chlorine
Phosphorus
Bromine
Heliumü
Answer: C) Bromine
Explanation:
The chemical element with the atomic number 35, Bromine is a non metal that remains liquid at room temperature. Mercury also remains liquid at room temperature but it is a metal. Bromine is the third lightest halogen.
Ammonia
Milk
Sodium chloride
Chalk
Explanation not provided, please join discuss, your contributions are welcomed
Wrought iron
Steel
Pig iron
Nickel steel
Answer: A) wrought iron
Explanation:
Wrought Iron is the purest form of iron. It contains 0.12 to 0.25% carbon and so it is the purest form of iron.
Option 1
Option 2
Option 3
Option 4
Answer: D) Option 4
Explanation:
According to Fajans rule, cation with greater charge and smaller size favours covalency.
Option 1
Option 2
Option 3
Option 4
Answer: D) Na-F
Explanation:
F-F = 4 - 4 = 0
Ca-F = 4 - 1 = 3.0
H-F = 4 - 2.2 = 1.8
Na-F = 4 - 0.93 = 3.07
Hence, the highest electronegativity difference is in Na-F.
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