| 1 |
The percentage of carbon is different types of iron products is in the order of. |
- A. Cast iron > wrought iron > Steel
- B. Wrought iron >Steel >Cast iron
- C. Cast iron > Steel > Wrought iron
- D. Cast iron > Steel > Wrought iron
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| 2 |
The type of hybridization in PCl3 is. |
- A. dsp2
- B. sp3
- C. dsp3
- D. d2sp3
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| 3 |
The total number of translation elements is |
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| 4 |
f - block elements are also called. |
- A. Non typical transition elements
- B. Outer transition elements
- C. Inner transition elements
- D. None of true
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| 5 |
The chemical composition of pyrolusite is. |
- A. KMnO4
- B. K2MnO4
- C. MnO2
- D. MnO
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| 6 |
In [Co(NH3)6]+3 the coordination number of cobalt is. |
- A. Zero
- B. Two
- C. Four
- D. Six
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| 7 |
Geometrical shape of [CO(NH3)6Cl3 |
- A. linear
- B. square planar
- C. Octahedral
- D. Trigonal hypyramid
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| 8 |
Which of the following is non-typical transition element |
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| 9 |
The substance which is added to remove impurities is known as |
- A. Slag
- B. Flux
- C. Ore
- D. Gangue
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| 10 |
The colour of transition metal complexes |
- A. d-d transitions of electrons
- B. paramagnetic nature of transition elements
- C. ionization
- D. loss of s-electron
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