Is Chlorine a Metal or Nonmetal?
Is Chlorine a Metal or Nonmetal? Chlorine is a nonmetal because—
Reason
Why is Concentrated H2SO4 not used to dry H2S?
Why is concentrated H2SO4 not used to dry H2S? Answer: Concentrated H2SO4 is not used to dry H2S. Because concentrated H2SO4 oxidizes hydrogen sulfide (H2S) to yellow sulfur and itself reduces to produce SO2. H2S + H2SO4 = S ↓ + SO2 ↑ + 2H2O
Why is H2S not dried by Quicklime or Anhydrous Calcium Chloride?
Why is H2S not dried by Quicklime or Anhydrous Calcium Chloride? Answer: Anhydrous Calcium Chloride (CaCl2) or Quicklime/Calcium oxide (CaO) is not used to dry H2S. Because anhydrous CaCl2 reacts with acidic H2S to form calcium sulfide. CaCl2 + H2S = CaS + 2HCl H2S reacts with quicklime (CaO) to form calcium sulphide. Therefore, H2S
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Why is concentrated HNO3 not used in the preparation of H2S?
Why is concentrated HNO3 not used in the preparation of H2S? Answer: Concentrated HNO3 is not used in H2S preparation as concentrated HNO3 is an oxidising agent. H2S produced by the reaction of HNO3 with ferrous sulphide is oxidized by concentrated HNO3 to sulfur and HNO3, which itself is reduced to produce nitrogen dioxide (NO2).
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Why is H2S dried by P205?
Why is H2S dried by P205? Answer: H2S is dried with P205. H2S is acidic and Phosphorus pentoxide or P2O5 is an acidic oxide. So they do not react to each other. Hence H2S is dried by P2O5.
Why is H2S not collected over mercury?
Why is H2S not collected over mercury? Answer: H2S is not collected over mercury. Because H2S reacts with mercury to produce black coloured mercuric sulphide compound. Hg + H2S = Hgs + H 2 ↑
Why is H2S not collected by the lower removal of cooling water?
Why is H2S not collected by the lower removal of cooling water? Answer: H2S is not collected by lower cooling water removal. Because H2S gas is soluble in cold water.
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Why is H2S gas collected by displacement of air?
Answer: H2S is collected by the upward displacement of air, as H2S is heavier than air.
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Why is HCI not used in the preparation of H2S?
Why is HCI not used in the preparation of H2S? Answer: HCl is not used in the preparation of H2S, because hydrochloric acid is a volatile acid mixes with the H2S produced. H2S is also a mild acid. Hence it is difficult to separate H2S from this acid mixture.
Why do we hear louder sounds in a hall?
Why do we hear louder sounds in a hall? Answer: Loud noises in the hall are reflected repeatedly from the walls, floor and ceiling of the room, resulting in reverberation.