Description : Give an example of oxidation of halide by another halogen. Explain the feasibility of the reaction.
Last Answer : Give an example of oxidation of halide by another halogen. Explain the feasibility of the reaction.
Description : Which of the following statements is correct for a saturated alkyl halide? (a) the C-X bond results from overlap of the s orbital of carbon and the p orbital of the halogen (X) (b) the C-X bond ... the C-X bond results from overlap of the sp2 orbital of carbon and the p orbital of the halogen (X)
Last Answer : the C–X bond results from overlap of the sp3 orbital of carbon and the p orbital of the halogen (X)
Description : Carboxylic acid reacts with halogen in presence of red P to gives__________ a) α-halogen acids b) β-halogen acid c) Acid halide d) Dicarboxylic acid
Last Answer : a) α-halogen acids
Description : (a) Write one example for each of decomposion reaction carried out with help of (i) Electricity (ii) Heat (iii) Light (b) Which of the following statements is correct and why copper can displace silver from silver nitrate and silver can displace copper from copper sulphate solution. -Chemistry
Last Answer : Thi is the Answer:
Description : Leakage in a cooking gas cylinder is detected by (A) Radio-isotopes (B) Pouring soap solution on the surface and locating the gas bubbles (C) Halide torch (D) Pungent smell of mercaptans present in the gas
Last Answer : Option D
Description : What does the fixing solution in developing X rays do: A. Removes unexposed silver halide crystals B. Removes exposed silver halide C. Fixes the developed film
Last Answer : A. Removes unexposed silver halide crystals
Description : Was the new technology able to displace the existing art of producing books by hand? -SST 10th
Last Answer : . In fact, printing books at first closely resembled the written manuscripts in appearance and layout. . The metal letters imitated the ornamental handwritten styles. . Borders were illuminated by ... could choose the design and decide on the painting school that would do the illustrations.
Description : Why did the new technology not entirely displace the existing art of producing books by hand? -SST 10th
Last Answer : First, the printed books closely resembled the written manuscripts in appearance and layout.Second, the metal letters imitated the ornamental hand styles. Third, borders in printed books were illuminated ... so new technology did not entirely displace the existing art of producing books by hand.
Description : which metal will displace nickel in a compound? -General Knowledge
Last Answer : Zinc will displace nickel in a compound.
Description : Equivalent Mass The eqivalent mass of a substance is defined as the number of parts by mass of it which combine with or displace 1.0078 parts by mass
Last Answer : Equivalent Mass The eqivalent mass of a substance is defined as the number of parts by mass of it which combine with ... O` A. 90 B. 45 C. 64 D. 128
Last Answer : Equivalent Mass The eqivalent mass of a substance is defined as the number of parts by mass of it which combine with or ... 10 M/7 C. 7 M/9 D. 9 M/7
Last Answer : Equivalent Mass The eqivalent mass of a substance is defined as the number of parts by mass of it which combine with or ... /5 B. M/6 C. M/10 D. M/2
Description : What metal works best to displace hydrogen's from acid?
Last Answer : This metal is lithium.
Description : Why the needle of iron swims on water surface when it is kept gently? (1) It will remain under the water, when it will displace more water than its weight (2) the density of needle is less than that of water (3) due to surface tension (4) due to its shape
Last Answer : (3) due to surface tension Explanation: According to Archimedes principle and we can note that the amount of water displaced by a needle is lesser than the amount of water moved out by the needle ( ... is a contractive tendency of the surface of a liquid that allows it to resist an external force.
Description : Name some metals which do not displace hydrogen from dilute acids.
Last Answer : Platinum, gold, silver, mercury & copper do not displace hydrogen from dilute acids.
Description : Sodium displaces hydrogen from dilute acids violently but copper does not displace hydrogen from dilute acids. Why?
Last Answer : Sodium is highly reactive than copper. Hence reaction with sodium reacts violently then that of copper.
Description : If the lateral force acting on the set screw is large and tends to displace one part with respect to other than which point is recommended? a) Dog Point b) Cone Point c) Window Point d) Cut Point
Last Answer : a) Dog Point
Description : To displace a cubic foot of fresh water, you need _________ force. a. 62.4 lb b. 9.81 lb c. 76 lb d. 760 lb
Last Answer : 62.4 lb
Description : The problems for criticism about large dams are that they A. Displace large number of peasants and trebles without proper rehabilitation B. Swallow up huge amounts of public money without the ... Contribute enormously to deforestation and the loss of biological diversity D. All of the above.
Last Answer : D. All of the above.
Description : The problems for criticism about large dams are that they A. Displace large number of peasants and trebles without proper rehabilitation B. Swallow up huge amounts of public money without the ... . Contribute enormously to deforestation and the loss of biological diversity D. All of the above.
Description : Why the needle of iron swims on water surface when it is kept gently ? (1) It will remain under the water, when it will displace more water than its weight (2) the density of needle is less than that of water (3) due to surface tension (4) due to its shape
Last Answer : due to surface tension
Description : Which of the following alkane is synthesised from single alkyl halide by wurtz reaction:-
Last Answer : Which of the following alkane is synthesised from single alkyl halide by wurtz reaction:- A. B. C. D.
Description : In order to prepare a `1^(@)` amine from an alkyl halide with simultaneous addition of one `CH_(2)` group in the carbon chain, the reagent used as sou
Last Answer : In order to prepare a `1^(@)` amine from an alkyl halide with simultaneous addition of one `CH_(2)` group in the ... C_(6)H_(4)(CO)_(2)N^(-)K^(+)`
Description : Which of the halide is unstable ?
Last Answer : Which of the halide is unstable ? A. `Nl_(3)` B. `Asl_(3)` C. `Bil_(3)` D. `Pl_(3)`
Description : Which of the following phosphorus halide is the best reducing agent?
Last Answer : Which of the following phosphorus halide is the best reducing agent? A. `PCl_(3)` B. `PF_(3)` C. `PBr_(3)` D. `PI_(3)`
Description : The order of decreasing basicity in the four halide ions is :
Last Answer : The order of decreasing basicity in the four halide ions is : A. `I^(-) gt Br^(-) gt Cl^(-) gt F^(-)` B. `Cl ... `Cl^(-) gt F^(-) gt Br^(-) gt I^(-)`
Description : The correct sequence of reducing power of halide ions are
Last Answer : The correct sequence of reducing power of halide ions are A. `Cl^(-) gt Br^(-) gt I^-` B. `Br^(-) gt I^(-) gt ... ^(-)` D. `Cl^(-) gt I^(-) gt Br^(-)`
Description : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands
Last Answer : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. ... and C black D. `Na(CN)_2^-`
Last Answer : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. ... NaBr C. (C) NaF D. (D) Nal
Last Answer : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. ... . H_2O` D. (D) None of these
Last Answer : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides ... . `NaCN, NaOCN` D. `HCOONa, NH_3`
Description : Which of the following hydrogen halide is most volatile?
Last Answer : Which of the following hydrogen halide is most volatile? A. HCl B. (B) HF C. (C) HI D. (D) HBr
Description : Metal (M) shows crimson red colour in flame test and its halide is deliquescent then metal (M) could be :
Last Answer : Metal (M) shows crimson red colour in flame test and its halide is deliquescent then metal (M) could be : A. Li B. Mg C. Ca D. Ba
Description : `S_(N^(1))` mechanism for the hydrolysis of an alkyl halide involves the formation of intermediate:
Last Answer : `S_(N^(1))` mechanism for the hydrolysis of an alkyl halide involves the formation of intermediate: ... B. carbocation C. carbanion D. none of these
Description : In Gabriel synthesis, halide may be:
Last Answer : In Gabriel synthesis, halide may be: A. benzyl halide B. allyl halide C. both (a), (c) are correct D. tertiary alkyl halide
Description : Statement-1: In protic solvents phenoxide ion is alkylated primarily at C-alkylation whereas in polar aprotic solvents O-alkylation with alkyl halide.
Last Answer : Statement-1: In protic solvents phenoxide ion is alkylated primarily at C-alkylation whereas in polar ... Statement-1 is false, Statement-2 is true
Description : Which alkyl halide would be preferred for the synthesis of the following ether by Williamson synthesis ? `H_(5)C_(2)-O-overset(CH_(3))overset(|)unders
Last Answer : Which alkyl halide would be preferred for the synthesis of the following ether by Williamson ... chloride C. Ethyl chloride D. Methyl chloride
Description : Phenol on heating with NaOH followed by reaction with alky1 halide gives
Last Answer : Phenol on heating with NaOH followed by reaction with alky1 halide gives A. Acetone B. Ether C. Ethonal D. Acetic acid
Description : An inorganic halide `(A)` reacts with water to form two acids `(B)` and `(c). (A)` also reacts with `NaOH` to form two salts `(D)` and `( E)` which re
Last Answer : An inorganic halide `(A)` reacts with water to form two acids `(B)` and `(c). (A)` also reacts with `NaOH` to ... . `SF_(6)` C. `SeF_(6)` D. `SF_(4)`
Description : `P_(4)("white")+SOCl_(2)rarrX("halide of P")+Y("oxide")+Z("halide of S")` Incorrect statement among the following is :
Last Answer : `P_(4)("white")+SOCl_(2)rarrX("halide of P")+Y("oxide")+Z("halide of S") ... has angular structure D. Hydrolysis of Z is a disproportionation reaction
Description : Chemically inert halide of sulphur is
Last Answer : Chemically inert halide of sulphur is A. `S_(2)Cl_(2)` B. `SF_(4)` C. `SCl_(2)` D. `SF_(6)`
Description : The oxidation state of sulphur in its octahedral halide is
Last Answer : The oxidation state of sulphur in its octahedral halide is A. `+4` B. `+6` C. `+5` D. `+2`
Description : What mean halide minerals?
Last Answer : What is the answer ?
Description : Are metal halide street lights an environmentally friendly option?
Last Answer : Yes many people believe that metal halide street lights are environment friendly. Here are some sites about these lights. www.fairfaxcounty.gov news releases 2009 , enduraliteled.ca/municipal
Description : The leaks in a refrigeration system using Freon are detected by (a) halide torch which on detection produces greenish flame lighting (b) sulphur sticks which on detection gives white smoke (c) using reagents (d) sensing reduction in pressure.
Last Answer : Ans: a
Description : Which halide is used in making sensitive emulsion on photographic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride
Last Answer : (2) Silver bromide Explanation: Silver bromide, a soft, paleyellow, water insoluble salt well known for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials.
Description : The most abundant halide in earth's crust by weight?
Last Answer : Fluoride