Practice the essential concepts of matter, atomic structure, chemical reactions, bonding and everyday applications of chemistry.
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What is the chemical formula for sucrose the common table sugar?
Which type of reaction releases energy to the surroundings causing the temperature to rise?
Which type of organic compounds contain only carbon and hydrogen atoms?
Which gas is released during photosynthesis?
Which type of organic reaction involves the addition of bromine water across a carbon to carbon double bond?
Which polymer is used to make plastic water bottles and is identified by recycling code 1?
Which gas is responsible for the distinctive smell of rotten eggs?
Which process adds water to a compound to break chemical bonds in organic reactions?
What is the chemical name of the compound with formula CuSO4?
What is the process by which plants convert light energy into chemical energy?
What is the formula for calculating moles from mass and molar mass?
What is the chemical formula for calcium carbonate found in limestone and chalk?
Which element is essential for synthesis of haemoglobin and its deficiency causes anaemia?
What is the concentration of a solution measured in moles per litre called?
What is the chemical formula for nitric acid used in fertiliser and explosive manufacturing?
Which organic functional group is present in alcohols?
What is the name of the vertical columns in the periodic table?
Which process converts vegetable oils into solid fats by adding hydrogen in the presence of a nickel catalyst?
Which element is commonly used in nuclear reactors as fuel?
Which indicator is colourless in acidic solution and pink in alkaline solution?