| 1 |
Elements of Groups IIA are called |
- A. Alkali metals
- B. Alkaline earth metals
- C. Coinage metals
- D. Halogens
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| 2 |
Which oxide is more basic in nature. |
- A. Beo
- B. MgO
- C. CaO
- D. BaO
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| 3 |
Which one of the following elements burns in air to form an oxide which, when shaken with water, give sa solution with a pH greater than 7. |
- A. Carbon
- B. Magnesium
- C. sulphur
- D. Hydrogen
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| 4 |
What are the total numbers of periods in the modern periodic table |
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| 5 |
Which one is an incomplete period |
- A. 4th
- B. 5th
- C. 6th
- D. 7th
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| 6 |
Which one of the following sets has coinage metaals is it. |
- A. Cu, Hg, Au
- B. Cu, Ag, Au
- C. Ag, Au, Hg
- D. Cu, Fe, Au
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| 7 |
Variable valency is generally exhibited by |
- A. Transition elements
- B. Alkali metals
- C. s-block elements
- D. Gaseous elements
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| 8 |
The element of 2nd period, which has highest ionization energy from the following is |
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| 9 |
Keeping in view size of atoms ,which order is the correct one. |
- A. Mg > Sr
- B. Ba > Mg
- C. Lu > Ce
- D. Cl > I
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| 10 |
Ionization energy of calcium is. |
- A. Lower than that of barium
- B. Lower than that of magnesium
- C. Higher than that of beryllium
- D. Lower than that of strontium
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