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Q.1.What is the angle of reflection if a ray falls normally on a plane mirror?
Q.2. Write the structural formula of chloromethane.
Q.3. Name any two a biotic components of an environment.
Q.4. How does the atomic size vary as you go down a group?
Q.5. The refractive index of diamond is 2.42. What is the meaning of this
Q.6. What do you mean by total internal reflection? Identify the condition in
which it occurs.
Q.7. Where do you think hydrogen should be placed in modern periodic table. Give
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