neutral
basic
acidic
amphoteric
a mixture
Correct answer is D
No explanation has been provided for this answer.
Which of the following statements is NOT true of carbon monoxide?
CO is poisonous
CO is readily oxidized at room temperature by air to form CO2
CO may be prepared by reducing CO2 mixed with coke heated to about 1000oC
CO may be prepared by heating charcoal with a limited amount of O2
CO is a good reducing agent
Correct answer is B
No explanation has been provided for this answer.
forms two alkaline oxides
is spontaneously flammable
burns with a blue flame
conducts electricity in the molten state
is usually stored in the form of sicks in water
Correct answer is C
No explanation has been provided for this answer.
polymerism
isotopy
isomorphism
isomerism
allotrophy
Correct answer is E
Allotropy or allotropism is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of these elements.
Ca(OH)2
CaCO3
CaHCO3
CaSO4
N2CO3
Correct answer is A
No explanation has been provided for this answer.