| 1 |
Out of all the elements of Group V-A the highest ionization energy is possessed by |
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| 2 |
Most likely product formed when formic acid is dehydrated in the presence of conc. H2SO4 is. |
- A. CO2 and H2O
- B. CO, CO2 and H2O
- C. CO2 and H2
- D. CO and H2O
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| 3 |
Oxidation of NO in air produces |
- A. N<sub>2</sub>O
- B. N<sub>2</sub>O<sub>3</sub>
- C. N<sub>2</sub>O<sub>4</sub>
- D. N<sub>2</sub>O<sub>5</sub>
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| 4 |
Lowest oxidation state of nitrogen is present in. |
- A. NH3
- B. NO2
- C. NO
- D. HNO3
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| 5 |
Basicity of ortho phosphoric acid is. |
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| 6 |
Which of the following is a reddish brown gas |
- A. N<sub>2</sub>O<sub>3</sub>
- B. NO<sub>2</sub>
- C. N<sub>2</sub>O<sub>3</sub>
- D. N<sub>2</sub>O<sub>5</sub>
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| 7 |
The brown gas formed when metal reduces HNO3 is |
- A. N2O5
- B. N2O3
- C. NO2
- D. NO
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| 8 |
In group VA elements the most electronegative elements is. |
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| 9 |
Which allotrope of phosphorus has layers like graphite. |
- A. white phosphorus
- B. Red phosphorus
- C. Black Phosphorus
- D. Amorphous phosphorus
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| 10 |
Which one of the following group of Periodic table called chalcogen family. |
- A. Group III A
- B. Group VA
- C. Group VI A
- D. Group VII A
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