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WorksheetsChemistry quiz
Total questions: 20
Worksheet time: 10mins
Elements with similar chemical properties appear in the
same family
same period
p-block elements
right upper corner
Non-metals usually forms .......... oxides.
acidic
amphoteric
neutral
all of above
Oxidation state of an atom represents
number of electrons gained
number of electrons lost
apparent charge in the compound
its valancies
Which one of the following element has highest oxidation state in its compound?
Cr
Mn
Sn
O
Which of the following is termed as endothermic reaction?
reaction in which heat is evolved
reaction in which heat is absorbed
reaction in which there is loss of oxygen
reaction in which there is gain of hydrogen
What is the name of the substance which get deposited over iron because of moisture present in the air?
sulphide
rust
carbonate
oxygen
Which of the following is termed as reducing agent?
which gives oxygen
which removes oxygen
which removes hydrogen
all of the above
Which of the following shows reduction reaction?
gain of oxygen
loss of oxygen
gain of hydrogen
none of above
What is another name of quick lime?
calcium hydroxide
calcium oxide
calcium carbonate
carbon monoxide
Which of the following gives energy while respiration?
burning of coal
burning of natural gas
burning of glucose
burning of oxygen
Which of the following gas is collected by downward displacement of air?
hydrogen
carbondioxide
ammonia
oxygen
Hydrogen gas is discovered by
Priestly
Cavendish
Lavoiser
Dalton
Who discovered oxygen gas?
Lavoiser
Cavendish
Priestly
Dalton
How many neutrons are there in Hydrogen atom?
0
1
2
3
Main source of organic compound is
animal
fossil
coal
plants
Electronegativity in a group
increases
decreases
remain constant
both a and b
Diamond is an allotrope of
carbon
silicon
phosphorus
nitrogen
What is the chemical name of ASPIRIN?
methyl salicylate
sodium
acetyl salicylate
salicylic acid
Eka aluminium is
Ga
Sc
In
Tl
Which of the following alkali used to balance the pH of human?
Mg(OH)2
NaOH
Ca(OH)2
KOH
