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प्रश्न
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
KCr2O7
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उत्तर
KCr2O7
Correct formula – K2Cr2O7
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संबंधित प्रश्न
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| Column A | Column B |
| (a) Pb(NO3)2 | (i) rotten eggs smell |
| (b) CO2 | (ii) burns with a pop sound |
| (c) (NH4)2Cr2O7 | (iii) the suffocating smell of sulphur |
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| (e) NO2 | (v) crackling sound |
| (f) O2 | (vi) residue swells up |
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| Across | Down | ||
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