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(i) In Refraction Of Light Through A Rectangular Glass Slab (ii) What Happens When A Light Ray Is Incident Normally
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Describe The Menstrual Cycle
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Draw A Diagram Of Respiratory System And Label The Following.
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While Breathing Out, Point Out The Changes You Think Occur In Diaphragm And Intercoastal Muscles.
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The Element Of A Period Of The Periodic Table Are Given Below In Order, From Left To Right With One Of Its Element Missing.
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An Element X (atomic Number = 17) Reacts With An Element Y (atomic Number = 20) To Form A Divalent Halide
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The Atomic Number Of Nitrogen (N), Oxygen (O) And Fluorine (F) Are 7, 8 And 9 Respectively
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From The Part Of A Periodic Table, Answer The Following Questions
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An Element X Placed In 2nd Group And 4th Period Of The Periodic Table Burns In The Presence Of Oxygen To Form A Basic Oxide
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Out Of Two Elements, Potassium And Sodium, Which One Can Lose Electron Easily? Give Reason For Your Answer
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Out Of The Two Elements X And Y Which Has Bigger Atomic Radius?
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What Is Meant By Periodicity In Properties Of Elements With Reference To Periodic Table?
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Identify The Compounds A To E In The Following Reaction Sequence.
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