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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
- Complete the following statement- Composition of manganese steel is-
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- PH3 has lower boiling point than NH3. Why?
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- Draw structure of BrF3.
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- Complete the following statement- Chromium steel is made up of-
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- Express 1138 in roman numbers.
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- Express 1139 in roman numbers.
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- Express 1140 in roman numbers.
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- Express 1141 in roman numbers.
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- Express 1150 in roman numbers.
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- Express 1151 in roman numbers.
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- Compounds of nitrogen, phosphorus and sulphur such as ammonia, phospho...
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- Express 1152 in roman numbers.
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- Describe the manufacture of H2SO4 by contact process?
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- What are amphoteric oxides? give two examples of amphoteric oxides?
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- Express 1154 in roman numbers.
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- Express 1155 in roman numbers.
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- Express 1156 in roman numbers.
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- Which form of sulphur shows paramagnetic behaviour and why ?
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- Unlike HCl, why HBr cannot be prepared by the action of concentrated s...
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- Write the reaction of white P with NaOH solution .
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