| 1 |
Which the correct statement |
- A. Cl<sup>-</sup>is smaller than Cl atom
- B. Cl<sup>-</sup>(Ion) and Cl (atom) are equal in size
- C. Na<sup>+</sup>is smaller than Na atom
- D. Na<sup>+</sup>is larger than Na atom
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| 2 |
The element of 2nd period, which has highest ionization energy from the following is |
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| 3 |
In modern periodic table VI period contains elements |
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| 4 |
Which of the following element has lowest ionization energy |
- A. Beryllium
- B. Boron
- C. Carbon
- D. Oxygen
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| 5 |
Across a period from left to right in the periodic table, the melting and boiling point. |
- A. Decrease
- B. Increase
- C. Remain constant
- D. First increase upto the middle of period and then decrease
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| 6 |
What criteria did Mendeleev use in arranging his periodic table. |
- A. Atomic mass
- B. Atomic number
- C. Mass number
- D. Density
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| 7 |
Number of elements in the first period of the periodic table is |
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| 8 |
Which oxide is more basic in nature. |
- A. Beo
- B. MgO
- C. CaO
- D. BaO
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| 9 |
Majority of the elements of the periodic table are. |
- A. Semi metals
- B. Non metals
- C. Metals
- D. Noble metals
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| 10 |
The concept of atomic number was introduced by |
- A. Alrazi
- B. Mendeleeve
- C. Moseley
- D. Dobereiner
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