Uttarakhand Board Class 10 Chemical Reactions and Equations — practice questions
13 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Uttarakhand Board Class 10 Chemical Reactions and Equations in the app →In a chemical equation, the substances written on the left-hand side are the:The substances formed in a chemical reaction are called the:A balanced chemical equation has an equal number of atoms of each element on both sides because of the law of:The reaction A + B → AB, where two substances combine to form one, is a:A reaction of the type AB → A + B, where a single compound breaks into simpler substances, is a:A reaction in which a more reactive element displaces a less reactive one from its compound is a:Gain of oxygen (or loss of electrons) by a substance is called:Loss of oxygen (or gain of electrons) by a substance is called:A reaction in which oxidation and reduction occur simultaneously is called a:The slow conversion of iron into rust in the presence of moisture and air is an example of:The oxidation of fats and oils in food, producing a bad smell and taste, is called:Decomposition brought about by passing electricity through a substance is called:The decomposition of a substance on heating is called ___ decomposition: