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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- Which chloride is explosive:
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- N2O4 molecule is completely changed into 2NO2 molecules at:
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- The chemical formula for tartar emetic is:
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- Which reacts rapidly with oxygen in the air at ordinary temperature :
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- Phosphine is not evolved when:
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- The number of molecules of water needed to convert one molecule of P2O...
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- The non-metal whose oxide is a good dehydrating agent is:
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- Orthophosphoric acid has the formula:
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- Acidic nature of pentoxide in group 15 down the group.
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- N, P, As, Sb and Bi are in group 15, So, Bi in its external most shell...
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- P4O10 has short and long P-O bonds. The number of short P-O bonds in t...
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- Which has the lowest boiling point:
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- Nitrogen is a relatively inactive element because:
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- Which statement is not correct for nitrogen ?
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- In P4O6 the number of oxygen atoms bonded to each P atom is:
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- Red and yellow phosphorus are:
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- Which ion cannot be precipitated from water:
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- Select the correct statement:
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- White phosphorus is:
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- The anhydride of orthophosphoric acid is:
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