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Class 10 Mcq

Class 10 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceWhen is the aqueous state symbol (aq) used in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Easy ScienceWhat is the correct meaning of upward and downward arrows in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Medium ScienceWhy are coefficients changed instead of chemical formulae while balancing equations?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Medium ScienceWhen two or more reactants combine to form a single product, which type of reaction is it?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Easy ScienceIf a chemical reaction produces two or more products from a single reactant, what type of reaction is it?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Easy ScienceWhen a single compound breaks down to form two or more products, what type of reaction is it called?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Easy ScienceWhich gas is used as a reactant during photosynthesis in plants?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Easy ScienceHydrogen and oxygen react to form water. Which type of reaction is this?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Easy ScienceWhat does a downward arrow generally show in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Easy ScienceWhat does an upward arrow generally show in a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Easy ScienceIn a methane molecule, how many hydrogen atoms are joined to one carbon atom by single covalent bonds?Class 10Carbon and its CompoundsCovalent bondingLevel 2Easy ScienceThe names of which group of organic compounds generally end in “-ane”?Class 10Carbon and its CompoundsHydrocarbonsLevel 2Easy ScienceBased on the saturated–unsaturated classification, what type of hydrocarbon is methane?Class 10Carbon and its CompoundsHydrocarbonsLevel 2Easy ScienceWhat type of bonds are present between carbon atoms in saturated hydrocarbons?Class 10Carbon and its CompoundsCovalent bondingLevel 2Easy ScienceWhat are compounds made only of carbon and hydrogen called?Class 10Carbon and its CompoundsHydrocarbonsLevel 2Easy ScienceWhat is the valency of carbon?Class 10Carbon and its CompoundsCovalent bondingLevel 2Easy