chemical reaction and equations 2
Authored by shilpi negi
Chemistry
10th Grade
Used 21+ times
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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which information is not conveyed by a balanced chemical equation?
Physical states of reactants and products
Symbols and formulae of all the substances involved in a particular reaction
Number of atoms/molecules of the reactants and products formed
Whether a particular reaction is actually feasible or not
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemically rust is
hydrated ferrous oxide
only ferric oxide
hydrated ferric oxide
none of these
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molecular formula for barium chloride?
BaCl2
BaCl
Ba2Cl
BaCl3
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Reactions in which energy is absorbed are known as _________ reactions.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxidation is the loss of electrons from a substance.
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The reaction between nitrogen and hydrogen to give ammonia is an example of a combination reaction.
True
False
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Unbalanced reactions are also known as _________
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