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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
- What is the bond angle in H2O ?
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- What is shape of O3 molecule ?
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- Ozone depletion in the stratosphere is mainly caused by :
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- What do you mean by tailing of mercury ?
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- What happens when H2S reacts with CuSO4 in acidic medium ?
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- H2SO4 acid is known as "king of chemicals". Explain.
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- Name the method of manufacturing H2SO4.
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- Name two allotropic forms of sulphur.
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- Arrange the basicity in increasing order of TeO2, SO2 and SeO2
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- What happens when H2S passed through FeCl3 solution ?
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- Write the valency shell electronic configuration of VIIA elements.
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- Halogens do not occur free in nature. Explain.
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- How physical state of halogen changes with increase in atomic number ?
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- Write colours of all the halogen gases.
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- Write the bond length of HCl.
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- HCl is weaker than HI. Explain.
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- Which gas is produced when NaCl is heated with conc. H2SO4 ?
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- What happens when chlorine gas is passed through cold caustic soda ?
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- Which of the halogen forms the weakest hydracids ?
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- Which halogen is solid at the room temperature ?
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