| 1 |
Which statement is incorrect about 64 g of SO2. |
- A. It is one mole SO2
- B. The number of SO2 molecule are 6.02 x 10<sup>23</sup>
- C. The number of oxygen atoms are 6.02 x 10<sup>23</sup>
- D. The number sulphur atom are 6.02 x 10<sup>23</sup>
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| 2 |
A limiting reactant is one. |
- A. Which is present in least amount
- B. Which produces minimum number of moles of product
- C. Which produces maximum number of moles product
- D. Does not effect the amount of product.
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| 3 |
the number of moles of CO2 which contain 8.0 g of oxygen. |
- A. 0.25
- B. 0.50
- C. 1.0
- D. 1.50
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| 4 |
Chlorine atom and chloride ions. |
- A. Are chemically identical
- B. Are allotropes of chlroin
- C. Have same number of electrons
- D. Have same number of protons
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| 5 |
Tin has Isotopes |
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| 6 |
The volume occupied by 1.4 g on N<sub>2</sub>at S.T.P is |
- A. 2.24 dm<sup>3</sup>
- B. 22.4 dm<sup>3</sup>
- C. 1.12 dm<sup>3</sup>
- D. 112 cm<sup>3</sup>
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| 7 |
If four moles of sulphur dioxide are oxidized to sulphur trioxide, how many moles of oxygen are needed. |
- A. 0.5
- B. 1.0
- C. 1.5
- D. 2.0
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| 8 |
the number of Al<sup>3+</sup> ion sin AlCl<sub>3</sub>is 2.007 x 10<sup>23</sup>. The number of Cl- ions are. |
- A. 6.02 x 10<sup>23</sup>
- B. 3.01 x 10<sup>23</sup>
- C. 3.01 x 10<sup>23</sup>
- D. 1.5 x 10<sup>23</sup>
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| 9 |
the volume occupied by 1.4 of N2 at S.T.P is |
- A. 2.24 dm3
- B. 22.4 dm3
- C. 1.12 dm3
- D. 112 cm3
|
| 10 |
Cadmium has isotopes. |
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