Description : Two oxidation states for chlorine are found in the compound :
Last Answer : Two oxidation states for chlorine are found in the compound : A. `CaOCl_(2)` B. `KCl` C. `KClO_(3)` D. `Cl_(2)O_(7)`
Description : Metal carbonyls have the metal ions in zero or unusually lower oxidation states. This is because :
Last Answer : Metal carbonyls have the metal ions in zero or unusually lower oxidation states. This is because : A. ... . D. carbonyl is a strongly p-acidic ligand.
Description : Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is bonded to neutral ligand, carbonyl.
Last Answer : Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is ... is False. D. If both Assertion & Reason are False.
Description : The oxidation state of nickel in `K_(4)Ni(CN)_(4)` is:
Last Answer : The oxidation state of nickel in `K_(4)Ni(CN)_(4)` is: A. `-1` B. `0` C. `+1` D. `+2`
Description : The oxidation number of nickel in K4[Ni(CN)4] is - (1) Zero (2) +4 (3) -4 (4) +8
Last Answer : (1) Zero Explanation: The oxidation number of nickel in K4[Ni(CN)4] is zero.
Description : What is the oxidation number of Nickel in K4[Ni(CN)4]?
Last Answer : Zero
Description : Pure nickel is (A) Ferromagnetic above its curie point (i.e., 415°C) (B) Having h.c.p. crystal lattice (C) Ferromagnetic at room temperature (D) Not resistant to oxidation at high temperature
Last Answer : (C) Ferromagnetic at room temperature
Description : The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is (A) Alumina (B) Silica gel (C) Platinum (D) Nickel
Last Answer : (A) Alumina
Description : Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils (A) Cause cholesterol build up and blood clotting (B) Are prone to rancid oxidation (C ... (as their complete removal is very difficult) (D) Have affinity to retain harmful sulphur compounds
Last Answer : (A) Cause cholesterol build up and blood clotting
Description : Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale. (A) Nickel (B) Vanadium (C) Alumina (D) Iron
Last Answer : (B) Vanadium
Description : . Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is (A) Nickel (B) Cobalt (C) Vanadium (D) Platinum
Last Answer : (D) Platinum
Description : Which of the following metals is least subject to oxidation? w) silver x) gold y) magnesium z) nickel
Last Answer : ANSWER: X -- GOLD
Description : The oxidation number of nickel in K4 [Ni(CN)4 ] is (1) Zero (2) +4 (3) –4 (4) +8
Description : which metal will displace nickel in a compound? -General Knowledge
Last Answer : Zinc will displace nickel in a compound.
Description : Assertion : Nickel can be purified by Mond process. Reason : `Ni(CO)_(4)` is a volatile compound which deomposed at `460K` to give pure `Ni`.
Last Answer : Assertion : Nickel can be purified by Mond process. Reason : `Ni(CO)_(4)` is a volatile compound which deomposed at `460K` to give pure `Ni`.
Description : Weld decay is caused by the formation of a compound with carbon. The other element in this compound is: a) Manganese b) Sulphur c) Chromium d) Nickel
Last Answer : c) Chromium
Description : Among the following States, which one has the highest amount of Nickel Ore resources? [Asstt Comm 2008] (a) Chhattisgarh (b) Jharkhand (c) Karnataka (d) Orissa
Last Answer : Ans: (d)
Description : Assertion :- Oxidation number of carbon in `CH_(2)O` is zero. Reason :- `CH_(2)O` (formaldehyde) is a covalent compound.
Last Answer : Assertion :- Oxidation number of carbon in `CH_(2)O` is zero. Reason :- `CH_(2)O` (formaldehyde ... is False. D. If both Assertion & Reason are False.
Description : Iodine shows the highest oxidation state in the compound :-
Last Answer : Iodine shows the highest oxidation state in the compound :- A. `KI` B. `KI_(3)` C. `IF_(5)` D. `KIO_(4)`
Description : Match List - I (compound) with list - II (Oxidation state of N) and select the correct answer using the codes given below the list :- `{:(" List - I",
Last Answer : Match List - I (compound) with list - II (Oxidation state of N) and select the correct answer using the codes given below ... {:(A,B,C,D),(b,c,d,e):}`
Description : Select the compound in which the oxidation number of oxygen is `-1` :-
Last Answer : Select the compound in which the oxidation number of oxygen is `-1` :- A. `H_(2)O` B. `O_(2)F_(2)` C. `Na_(2)O` D. `BaO_(2)`
Description : A compound contains atoms A, B and C. The oxidation number A is `+2`, of B is `+5` and of C is `-2`. The possible formula of the compound is :
Last Answer : A compound contains atoms A, B and C. The oxidation number A is `+2`, of B is `+5` and of C is `-2`. The ... BC_(4))_(2)` D. `A_(3)(B_(4)C)_(2)`
Description : Compound (A) `C_(8)H_(9)Br`, gives a white precipitate when warmed with alcoholic `AgNO_(3)`. Oxidation of (A) gives an acid (B),`C_(8)H_(6)O_(4)`. (B
Last Answer : Compound (A) `C_(8)H_(9)Br`, gives a white precipitate when warmed with alcoholic `AgNO_(3)`. Oxidation of ... . Identify the compound (A) A. B. C. D.
Description : Consider a compound `CsXY_2` where X and Y are halogens. Which of the following statements is /are correct ? (i)X and Y have different oxidation state
Last Answer : Consider a compound `CsXY_2` where X and Y are halogens. Which of the following statements is /are correct ? (i)X ... ) C. Only (ii) D. (i) and (iii)
Description : An element `A` in a compound `ABD` has oxidation number `A^(n-)`. It is oxidised by `Cr_(2)O_(7)^(2-)` in acid medium. In the experiment `1.68xx10^(-3
Last Answer : An element `A` in a compound `ABD` has oxidation number `A^(n-)`. It is oxidised by `Cr_(2)O_(7)^(2-)` in acid ... is: A. 3 B. 3-n C. n-3 D. `+n`
Description : Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction oxidation state of iron .
Last Answer : Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction ... . changes from +2 to +4 D. does not change.
Description : Which of the following compound gives ethylmethyl ketone on oxidation ?
Last Answer : Which of the following compound gives ethylmethyl ketone on oxidation ? A. Propan-2-ol B. Butan-1-ol C. Butan-2-ol D. 2-methylbutan-2-ol
Description : A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2)O_(7)X` gave Y. Y also gives iodogorm test. T
Last Answer : A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2) ... ` D. `CH_(3)COCH_(3), CH_(3)CHOHCH_(3)`
Description : A compound reacts with sodium and liberates hydrogen and on oxidation gives ketone. The formula of the compound could be
Last Answer : A compound reacts with sodium and liberates hydrogen and on oxidation gives ketone. The formula of the compound could ... `CH_(3)CH_(2)CH_(2)CH_(2)OH`
Description : `XeF_(6)` reacts with silica to form xenon compound X. The oxidation state of Xe in X is :
Last Answer : `XeF_(6)` reacts with silica to form xenon compound X. The oxidation state of Xe in X is :
Description : Give the formula of a compound in which carbon exhibit an oxidation state of : A. +4 B. +2 C. -4
Last Answer : Give the formula of a compound in which carbon exhibit an oxidation state of : A. +4 B. +2 C. -4
Description : When Is the oxidation state of metal indicated in the name of the compound?
Last Answer : It is a method to distinguish different ions of a metal.
Description : A complex compound in which the oxidation number of a metal is zero is - (1) K4 [Fe (CN)6] (2) K3 [Fe (CN)6] (3) [Ni (CO)4] (4) [Pl (NH3)4]Cl2
Last Answer : (3) [Ni (CO)4]
Description : Select the compound in which chlorine shows oxidation state + 7?
Last Answer : HClO4
Description : Which is the compound in that oxygen shows + 2 oxidation state?
Last Answer : F2O
Description : The oxidation state exhibited by hydrogen in its various compound ares------------------------
Last Answer : Ans: +1.-1 and Zero
Description : Which conditions are fulfilled in case of combustion? (a) Oxygen is reduced (b) Burning compound undergoes oxidation (c) Oxygen is reducing agent (d) Both (a) and (b)
Last Answer : (d) Both (a) and (b)
Description : An organic compound (A), C3H8O, on oxidation gives (B), C3H6O. The compound (B) could be (a) a carbonyl compound (b) an alcohol (c) a carboxylic acid (d) an ether
Last Answer : a carbonyl compound
Description : An organic compound (A), C3H8O, on oxidation gives (B), C3H6O. The compound (A) could be (a) an aldehyde (b) a ketone (c) an alcohol (d) an ester
Last Answer : an alcohol
Description : What is the oxidation number of Bismuth in the compound Bismuth Phosphide?
Last Answer : ANSWER: + 3 (accept 3)
Description : Which element of group V A shows maximum oxidation states ?
Last Answer : Which element of group V A shows maximum oxidation states ? A. bismuth B. phosphorus C. nitrogen D. arsenic
Description : What is the sum of highest and lowest oxidation states for oxygen family
Last Answer : What is the sum of highest and lowest oxidation states for oxygen family
Description : Fluorine has -1 oxidation state while iodine exhibits oxidation states of -1, +1, +3 ,+5 and +7. This is due to
Last Answer : Fluorine has -1 oxidation state while iodine exhibits oxidation states of -1, +1, +3 ,+5 and ... availability of d-orbitals in iodine D. none of above
Description : Statement `N` atom has two different oxidation states in `NH_(4)NO_(2)`. Explanation One `N` atom has-`ve` oxidation number as it is attached with les
Last Answer : Statement `N` atom has two different oxidation states in `NH_(4)NO_(2)`. Explanation One `N` atom has-`ve` ... C. I, II and III D. I, II and IV
Description : The oxidation states of sulphur in the anions `SO_(3)^(2-), S_(2)O_(4)^(2-)`, and `S_(2)O_(6)^(2-)` follow the order
Last Answer : The oxidation states of sulphur in the anions `SO_(3)^(2-), S_(2)O_(4)^(2-)`, and `S_(2)O_(6)^(2-)` follow ... (6)^(2-)ltS_(2)O_(4)^(2-)ltSO_(3)^(2-)`
Description : Fluorine does not exhibit variable oxidation states due to
Last Answer : Fluorine does not exhibit variable oxidation states due to A. small size B. more electronegativity C. less density D. lack of vacent d orbitals