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  1. Problems
  2. /Carbon and Its Compounds
  3. /Covalent Bonding and Allotropes

Covalent Bonding and Allotropes

Chemistry
+ Upload a Problem
More in Carbon and Its CompoundsCovalent Bonding and AllotropesHydrocarbons and NomenclatureReactions and Uses of Carbon Compounds
10 problems
Type:
1.
A graphite rod of mass 18 g burns completely in oxygen.
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Medium
2.
Which form of carbon, diamond or graphite, suits each use best?
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Easy
3.
A chemist has 1.8 g of fullerene, C₆₀, whose molar mass is 720 g/mol.
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Medium
4.
The numbers of different alkanes with 7, 8, 9 and 10 carbon atoms are 9, 18, 35 and 75.
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Medium
5.
Carbon makes more than ten million compounds.
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Easy
6.
Four white or colourless substances are tested.
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Medium
7.
Ethanal, CH₃CHO, has a double bond between its second carbon atom and the oxygen atom.
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Medium
8.
How many pairs of electrons are shared in each bond named?
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Easy
9.
Two chlorine atoms, each 2, 8, 7, join to make Cl₂.
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Easy
10.
Octane, C₈H₁₈, is a part of petrol. Its carbon atoms form an unbranched chain.
High School (9–10), General · Covalent Bonding and AllotropesStemPy LabStemPy Lab
Easy