chemistry 2nd Year Notes 2021.pdf

chemistry 2nd Year Notes 2021.pdf MULTIPLE CHOICE QUESTIONS UNIT#01+02 1. Keeping in view the size of atoms, which order is correct one: A Mg > Sr B Ba > Mg C Lu > Ce D Cl > I 2. Mark the correct statement: – A Na+ is smaller than Na atom B Na+ is larger than Na atom C Clis smaller than Cl atom D Cl- and Cl atom are equal in size 3. Period five in modern periodic table contains how many elements? A 32 B 18 C 10 D 8 4. Smaller the size of an ion A Lesser is degree of hydration B Lesser is polarizing power C Greater is degree of hydration D Greater is electron affinity 5. Hydrogen can be placed with the elements of group IV-A because both A Act as oxidizing agents B Act as reducing agents C Possess the property of calcinations D Form neutral oxides 6. Which of the following element has highest ionization energy? A N B P C Sb D Bi 7. 2 nd value of electron Affinity is: A negative B Positive C Both A and B D Zero 8. Hydration energy of Na+ ion: A – 390 KJ/mole B – 490 KJ /mole C – 590 KJ /mole D – 690 KJ /mole 9. The elements of atomic number 15 is the member of: A 2 nd period B 3 rd period C 4 th period D 5 th period 10. In the 7th period elements present of the p-block: A 0 B 2 C 6 D 10 11. Which of the following Alkali metal is more reactive: A Na B Lithium C Cesium D K 12. Ores of beryllium: A Natron B Beryl C Asbestos D Talc 13. Which Ion will have maximum value of heat of hydration? A Ba+2 B Mg+2 C Sr+2 D Ca+2 14. During electrolysis of brine which element is deposited at cathode: A O2 B Cl2 C Na D H2 15. Chrysoberyl has formula: A Al2O3. B2O3 B Al2BeO4 C Al2O3. 2H2O D Be2O3. H2O 16. Spodumene is the ore of: A Na B K C Be D Li 17. Chile salt peter is: A Na2SO4 B NaNO3 C Na2 (SO4)3 D NaNO2