11. Which one of the following represents the correct order of electron releasing tendency of metals?
12. Which of the following properties increases with an increase in atomic number in the first and seventh groups of the modern periodic table?
13. Find the wrong match pair/pairs from the following:
1. Copper - Cu
2. Gold - Au
3. Mercury - Mg
4. Platinum - Pt
5. silver - Ag
1. Copper - Cu
2. Gold - Au
3. Mercury - Mg
4. Platinum - Pt
5. silver - Ag
14. Atomic size when going from sodium to chlorine . . . . . . . .?
15. Which of the following options has the highest melting point and boiling point?
16. Consider the following statements,
1. In Mendeleef's periodic table, position of the isotopes was not fixed.
2. In the 19th century, Mendeleef propounded periodic law is based on atomic mass.
Which of the above statement(s) is/are correct?
1. In Mendeleef's periodic table, position of the isotopes was not fixed.
2. In the 19th century, Mendeleef propounded periodic law is based on atomic mass.
Which of the above statement(s) is/are correct?
17. Which of the following statements is incorrect?
18. Seventh period:
19. Which of the following properties is inversely related to electronegativity?
20. Which of the following is the correct pair according to the increase in atomic number when moving from left to right?
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