Punjab Public Service Commission — Complete MCQ Bank
PPSC examinations recruit candidates for Punjab government departments and commonly test general knowledge, current affairs, English and post-related subjects.
Which process adds water to a compound to break chemical bonds in organic reactions?
Which polymer is used to coat non-stick cookware due to its very low friction coefficient?
What is the chemical formula for ethanoic acid commonly found in vinegar?
What gas is produced when calcium carbonate is heated strongly in thermal decomposition?
Which indicator changes through a full colour range across the pH scale?
What is the chemical formula for sucrose the common table sugar?
Which process hardens rubber by adding sulfur making it stronger and more elastic?
What is the chemical formula for laughing gas used as a mild anaesthetic in dentistry?
Which element is essential for synthesis of haemoglobin and its deficiency causes anaemia?
Which type of chemical bond involves atoms sharing electrons unequally due to difference in electronegativity?