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 type of chemical bond involves atoms sharing electrons unequally due to difference in electronegativity?
Which type of formula shows all the bonds between atoms in a molecule?
What is the chemical symbol for lead?
Which gas turns limewater milky when bubbled through it?
Which process converts sugar into alcohol and carbon dioxide using yeast?
What is the chemical name of the compound with formula Na2SO4?
Which indicator is colourless in acidic solution and pink in alkaline solution?
Which indicator turns red in acidic solutions and blue in alkaline solutions?
Which law states that the amount of substance deposited during electrolysis is directly proportional to the quantity of electricity passed?
Which type of reaction in organic chemistry involves replacing a hydrogen atom with another atom or group?