| 1 |
In which compound, oxidation state of sulphur is +6 |
- A. H2S
- B. H2SO4
- C. H2SO3
- D. SO3
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| 2 |
In modern periodic table VI period contains elements |
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| 3 |
Mark the incorrect statement |
- A. Metallic character increase down the group
- B. Metallic character increase from left to right along a period
- C. Metallic character decrease from left to right along a period
- D. Metallic character remains the same down the group
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| 4 |
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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| 5 |
Hydrogen resembles in properties with |
- A. IA, IV A and VII A elements
- B. III A, IV A and V A elements
- C. II A, IV A and VI A elements
- D. II A, III A and VII A elements
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| 6 |
<div>Which hydride is intermediate in nature.</div> |
- A. NaH
- B. BeH2
- C. NH3
- D. HCl
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| 7 |
Which element has lowest melting point |
- A. Beryllium
- B. Magnesium
- C. Calcium
- D. Barium
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| 8 |
Which one of the following elements burns in air to form an oxide which, when shaken with water, give a solution with a pH greater than 7. |
- A. Carbon
- B. Magnesium
- C. sulphur
- D. Hydrogen
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| 9 |
Number of elements in the first period of the periodic table is |
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| 10 |
Which one is an incomplete period |
- A. 4th
- B. 5th
- C. 6th
- D. 7th
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