Description : The oxidation number of N in NaNO2 is: w) +5 x) +2 y) +3 z) -3
Last Answer : ANSWER: Y -- +3 (Accept 3)
Description : Compound (A) when reacted with PCl5 and then with ammonia gave (B). Compound (B) when treated with bromine and NaOH, produced (C). Compound (C) on treatment with NaNO2/HCl at 0°C and then boiling with H2O ... Compound (A) is (a) o-Toluic acid (b) o-Chlorotoluene (c) m-Toluic acid (d) o-Bromotoluene
Last Answer : o-Toluic acid
Description : Which of the following reagents is used to prepare benzenediazonium chloride from aniline? (a) NaNO2 + HCl (b) LiAlH4 (c) NH2NH2 + KOH (d) NaOH
Last Answer : NaNO2 + HCl
Description : Lucas reagents is (a) HCl/NaNO2 (b) H2/Pd (c) HCl/ZnCl2 (d) H2/Pd/BaSO4
Last Answer : HCl/ZnCl2
Description : Which of the following pairs of compounds could NOT be used to create a buffer solution? Would it be: w) HCL and NaCl (read: H - C - L and N - A - C - L) x) HCN and NaCN (read: H - C - N and N - A - C - N) y) NH3 ... - H - 4 - C - L) z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)
Last Answer : ANSWER: W -- HCL AND NaCl (read: H - C - L and N - A - C - L)
Description : (3) Conversion of ammonia to nitrites Explanation: Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The oxidation of ammonia ... -oxidizing archaea (AOA). Nitrification is an important step in the nitrogen cycle in soil.
Last Answer : Acid rain is caused due to pollution of atmosphere by – (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorous (4) None of these
Description : Nitrogen forms a variety of compounds in all oxidation states ranging from - (1) -3 to + 5 (2) -3 to +3 (3) -3 to + 4 (4) -3 to +6
Last Answer : (1) -3 to + 5 Explanation: Nitrogen compounds are chemical compounds containing nitrogen ions. Nitrogen forms compounds with a wide range of oxidation states that range from -3 for the ... oxidation state compounds are strong oxidizing agents. -3 oxidation state compounds are weak reducing agents.
Description : In which of the following compounds, nitrogen exhibits highest oxidation state? (1) NH2OH (2) N2H4 (3) NH3 (4) N3H
Last Answer : N3H
Description : What is the oxidation state of nitrogen in nitrous acid?
Last Answer : ANSWER: +3
Description : Nitrogen forms a variety of compounds in all oxidation states ranging from (1) –3 to + 5 (2) –3 to + 3 (3) –3 to + 4 (4) –3 to + 6
Last Answer : –3 to + 5
Description : Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. Reason :- The oxidation number of Nitrogen remains sa
Last Answer : Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. ... False. D. If both Assertion & Reason are False.
Description : What is the oxidation number of nitrogen in sodium nitrate?
Last Answer : The oxidation number of nitrogen in sodium nitrate is 5.
Description : In which of the following compounds, nitrogen exhibits highest oxidation state ?
Last Answer : In which of the following compounds, nitrogen exhibits highest oxidation state ? A. `N_(3)H` B. `NH_(2)OH` C. `N_(2)H_(4)` D. `NH_(3)`
Description : `-1//3` oxidation state of nitrogen will be obtained in case of :
Last Answer : `-1//3` oxidation state of nitrogen will be obtained in case of : A. Ammonia `(NH_(3))` B. Hydrazoic ... oxide `(NO)` D. Nitrous oxide `(N_(2)O)`
Description : Oxidation state of nitrogen is incorrectly given for:
Last Answer : Oxidation state of nitrogen is incorrectly given for: A. `{:("Compound","Oxidation State"),([Co(NH_(3))_(5 ... ,"Oxidation State"),(Mg_(3)N_(2),-3):}`
Description : Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen ?
Last Answer : Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen ? A. `HNO_(3), ... `NO, HNO_(3), NH_(4)Cl, N_(2)`
Description : Explain the trend in oxidation state of elements from nitrogen to bismuth.
Last Answer : Explain the trend in oxidation state of elements from nitrogen to bismuth.
Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification
Last Answer : (d) Anaerobic ammonium oxidation and denitrification
Description : Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by (A) Decreasing the pressure (B) Decreasing the temperature (C) Increasing the temperature (D) None of these
Last Answer : (C) Increasing the temperature
Description : During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about __________ percent. (A) 38 (B) 68 (C) 82 (D) 98
Last Answer : (D) 98
Description : The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent. (A) 60 (B) 30 (C) 95 (D) 100
Last Answer : (A) 60
Description : Bacteria, as a group, are responsible for A.nitrogen oxidation B.sulfur oxidation C.nitrogen fixation D.all of these
Last Answer : D.all of these
Description : Nitrogen oxidation (nitrification)refers to the A- conversion of ammonium ions into nitrates through the activities of certain bacteria B- changing of atmospheric nitrogen (N2) to nitrogen compounds C- sulfur is oxidized to the sulfate form through Thiobacillusbacteria D- none of the above
Last Answer : conversion of ammonium ions into nitrates through the activities of certain bacteria
Description : Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is (A) Alumina (B) Platinum (C) Vanadium pentoxide (D) Iron oxide
Last Answer : Option B