Chemistry
Practice Chemistry MCQs from the Science syllabus.
What is the weight of 22.4 liters of CO2 gas at STP?
Which of the following describes the bond in a Carbon Monoxide (CO) molecule?
The reaction: C + H2O (steam) -> CO + H2 produces:
How many carbon atoms are present in a molecule of decane?
The boiling point of alkanes _________ as the molecular mass increases.
What is the volume of CO2 produced at STP when 10 grams of calcium carbonate (CaCO3) is strongly heated?
Which of the following represents the correct hybridization and bond angle for the central carbon in ethene (C2H4)?
How many isomers are possible for the formula C5H12?
The percentage of carbon in an organic compound is 80% and hydrogen is 20%. What is its empirical formula?
When methane reacts with chlorine in excess sunlight, the final product is:
Which of the following contains a coordinate (dative) covalent bond?
Calculate the number of molecules in 11 grams of CO2 gas.
In which of the following does carbon show an oxidation state of zero?
Which of the following statements about Diamond and Graphite is true?
Urea was the first organic compound synthesized from an inorganic compound. Who performed this synthesis?
What is the heat of combustion of methane (approximate)?
Which of the following organic compounds will give a brisk effervescence with sodium bicarbonate?
What is the total number of lone pairs of electrons in a molecule of CO2?
Identify the product formed when ethyne is passed through a red-hot iron tube.