| 1 |
Which element does not have allotropic form |
- A. Nitrogen
- B. Phosphorous
- C. Arsenic
- D. Antimony
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| 2 |
Which catalyst is used in contact process |
- A. Fe<sub>2</sub>O<sub>3</sub>
- B. V<sub>2</sub>O<sub>5</sub>
- C. SO<sub>3</sub>
- D. Ag<sub>2</sub>O
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| 3 |
In pyrite burner, the gas produced is. |
- A. SO3
- B. SO2
- C. CO2
- D. NO
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| 4 |
Each of the following is true for white and red phosphorus except one. |
- A. Both are soluble in CCl4
- B. Both can be oxidized by heating in air
- C. Both consists of same kind of atoms
- D. Both can be converted into each other
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| 5 |
NH4NO3 on heating at 200 <sup>o</sup>C changes to |
- A. N2O
- B. NO
- C. NO2
- D. N2O4
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| 6 |
Which one of the following does not react with dilute sulphuric acid. |
- A. Mg (OH)2
- B. Mg
- C. MgO
- D. Mg(NO3)2
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| 7 |
Which of the following specie has the maximum number of unpaired electrons. |
- A. O2
- B. O2+
- C. O2-
- D. O2<sup>-2</sup>
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| 8 |
In aqua regia, the ratio of conc. HCl to Conc. HNO3 is |
- A. 1 : 1
- B. 2 :1
- C. 1:2
- D. 3 : 1
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| 9 |
Which statement is incorrect about H2SO4 |
- A. Dehydration agent
- B. dibasic acid
- C. Oxidizing agent
- D. Reducing agent
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| 10 |
Sulphuric acid acts as dehydrating agent in its reaction with. |
- A. Sodium chloride
- B. Potassium nitrate
- C. Copper
- D. Ethyl alcohol
|