MP Board Class-11 Chemistry Question answer collection & Notes page number 1

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1. Choose and write the correct option - The empirical formula of compound is CH2. Atomic mass is 42 gram.
2. Fill in the blank with correct option. (i) ............have same number of proton. (Isobar/ Isotopes / Iso-pressure)
3. Match the columns and write the correct pair - (i) Father of Modern Chemistry - (a) Orientation
4. Write the Answer in one sentence each - (i) What will be the mass of 22.4 L of CO2 at STP?
5. What is mole concept?
6. How will we prove that air is a mixture and not a compound?
7. What is shielding effect?
8. Why do elements in the same group have similar physical and chemical properties?
9. Which molecule has more dipole moment in NH3 and NF3 and why?
10. Why the H-N-H bond angle in NH3 is greater than the H-P-H bond angle in PH3?
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