Hydrides of Nitrogen
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Q. There are some deposits of nitrates and phosphates in earth's crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under the laboratory conditions but microbes do it easily. Ammonia forms large number of complexes with transition metal ions. Hybridisation easily explains the case of sigma donation capability of NH3 and PH3. Phosphine is a flammable gas and is prepared from white phosphorus.
Among the following, the correct statement is
Among the following, the correct statement is
- Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupies spherical 's' orbital and is less directional
- Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupies sp3-orbital and is more directional
- Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupies sp3-orbital and is more directional
- Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupies spherical 's' orbital and is less directional
Q. There are some deposits of nitrates and phosphates in earth's crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under the laboratory conditions but microbes do it easily. Ammonia forms large number of complexes with transition metal ions. Hybridisation easily explains the case of sigma donation capability of NH3 and PH3. Phosphine is a flammable gas and is prepared from white phosphorus.
Among the following, the correct statement is
Among the following, the correct statement is
- Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupies spherical 's' orbital and is less directional
- Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupies sp3-orbital and is more directional
- Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupies sp3-orbital and is more directional
- Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupies spherical 's' orbital and is less directional
Q. Which of the following ammonium salts give(s) nitrogen on heating?
- (NH4)2SO4
- NH4NO2
- (NH4)2(CO3)
- (NH4)2Cr2O7
Q. Which of the following reactions is/are correct when Cl2 reacts with NH3?
- NH3+Cl2→NCl3+HCl
Excess
- NH3+Cl2→N2+NH4Cl
Excess - NH3+Cl2→N2+NH4Cl
Excess - NH3+Cl2→NCl3+HCl
Excess
Q. Excess of Cl2 reacts with ammonia to form:
- NH3 and N2
- NCl3 and HCl
- NCl3 and N2
- NH4Cl and N2
Q. When ammonium perchlorate is heated below 300 oC, which of the following gases are produced?
- N2O
- Cl2
- NOCl
- O2
Q. When excess of ammonia reacts with bleach, it can form:
- NO
- NH4Cl
- N2H4
- HNO2
Q. What are the major products when ammonia reacts with an excess of chlorine?
- HNO3 and HCl
- N2 and HCl
- HNO2 and HCl
- NCl3 and HCl
Q. The ammonia prepared by treating ammonium sulphate with calcium hydroxide is completely used by NiCl2.6H2O to form a stable coordination compound. Assume that both the reactions are 100% complete. If 1584 g of ammonium sulphate and 952 g of NiCl2.6H2O are used in the preparation, the combined weight (in grams) of gypsum and the nickel-ammonia coordination compound thus produced is .
(Atomic weights in g mol−1 : H = 1, N = 14, O = 16, S = 32, Cl = 35.5, Ca = 40, Ni = 59)
(Atomic weights in g mol−1 : H = 1, N = 14, O = 16, S = 32, Cl = 35.5, Ca = 40, Ni = 59)
Q. When excess of Cl2 reacts with ammonia, the products formed are:
- NH3 and N2
- NCl3 and HCl
- NCl3 and N2
- NH4Cl and N2