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CHETANA PUBLICATION-Elements of groups 16, 17 and 18-EXERCISE
- What is aqua regia Show reaction of aquaregia on gold and platinum
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- Which of the following has highest electron gain enthalpy ?
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- Hydrides of group 16 are weakly acidic. The correct order of acidity...
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- Which of the following element does not show oxidation state of +4 ?
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- HI acid when heated with conc. H2S04 forms
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- Ozone layer is depleted by
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- Which of the following occurs in liquid state at room temperature?
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- In pyrosulfurous acid oxidation state of sulfur is
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- Stability of interhalogen compounds follows the order
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- BrCl reacts with water to form
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- Chlorine reacts with excess of fluorine to form.
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- In interhalogen compounds, which of the following halogens is never th...
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- Which of the following has one lone pair of electrons?
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- In which of the following pairs, molecules are paired with their corre...
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- Which is the most abundant noble gas?
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- Ozone is:
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- Maximum covalency of sulphue is:
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- Oxygen exhibite-1 state in:
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- Fluorine can exist in the oxidation state.
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- The maximu, abudant elements in earth's crust is:
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- Give structure of sulfur dioxide
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