Description : What is the name of the first organic compound prepared from inorganic compounds ?
Last Answer : The first organic compound made from inorganic compound is called urea.
Description : First stable compound of inert gas was prepared by
Last Answer : First stable compound of inert gas was prepared by A. Rayleigh and Ramsay B. Bartlett C. Frankland and Lockyer D. Cavendish
Description : The first noble gas compound prepared by Bartlett is
Last Answer : The first noble gas compound prepared by Bartlett is A. `XeF_(2)` B. `KrF_(2)` C. `XePtF_(6)` D. `XeO_(3)`
Description : A compound is prepared from the mineral colemanite by boiling it with a solution of sodium carbonate.
Last Answer : A compound is prepared from the mineral colemanite by boiling it with a solution of sodium ... . Write the reaction that explains its formation.
Description : Which is the first organic compound ar- tificially prepared?
Last Answer : Urea
Description : Friedrich Wohler prepared the organic compound
Last Answer : urea.
Description : Which was the first organic compound to be prepared?
Last Answer : In 1828 Friedrich Wohler prepared urea, a typical product of animal metabolism by heating an aqueous solution of an inorganic compound ammonium cyanate which is obtained from non-living material.
Description : Which of the following amines cannot be prepared by path-I?
Last Answer : Which of the following amines cannot be prepared by path-I? A. B. C. D.
Description : Which is the following cannot be prepared by using Williamson synthesis ?
Last Answer : Which is the following cannot be prepared by using Williamson synthesis ? A. Methoxybenzene B. ... Methyl tert butyl ether D. Ditertiary butyl ether
Description : Primary alcohol cannot be prepared by the reduction of
Last Answer : Primary alcohol cannot be prepared by the reduction of A. aldehyde B. acid C. Ketone D. ester
Description : Iodororm cannot be prepared from
Last Answer : Iodororm cannot be prepared from A. `CH_(3)OH` B. `C_(2)H_(5)OH` C. `CH_(3)CHO` D. `CH_(3)COCH_(3)`
Description : Potassium carbonate cannot be prepared by Solvay process. Why?
Last Answer : Ans. Potassium carbonate cannot be prepared by Solvay process because potassium bicarbonate being more soluble than sodium bicarbonate does not get precipitated when CO2 is passed through a Conc. Solution of KCl saturated with ammonium.
Description : K2CO3 Cannot be prepared by solvay process ?
Last Answer : Ans. Because KHCO3 is highly soluble in water
Description : Which of the following statements is false about benzylamine? (a) can be prepared by reduction of benzonitrile with LiAlH4. (b) cannot be prepared by reduction of benzamide with LiAlH4. (c) reacts with nitrous acid to give benzyl alcohol. (d) reacts with KMnO4 to give benzoic acid.
Last Answer : cannot be prepared by reduction of benzamide with LiAlH
Description : In which compound, Cis-Trans nomenclature cannot be used?
Last Answer : In which compound, Cis-Trans nomenclature cannot be used? A. `CH_(3)-CH=CH-CH_(3)` B. `CH_(3)-CH=CH-COOH` C. D. `C_(6)H_(5)-CH=CH-CHO`
Description : The compound that cannot be formed by xenon is
Last Answer : The compound that cannot be formed by xenon is A. `XeO_3` B. `XeF_4` C. `XeCl_4` D. `XeOF_4`
Description : Which of the following vitamin combines with avid in contained in egg-white forming a compound that cannot be absorbed by the intestine and is therefore, excreted – (1) vitamin B₂ (2) vitamin B₃ (3) vitamin B₇ (4) vitamin A
Last Answer : (3) vitamin B₇
Description : Give reason: Ethanol cannot be called poly-functional compound.
Last Answer : Ethanol has only one functional group – OH.
Description : An amount becomes 160% of itself in 5 years through simple interest. At the same rate of interest, how long will it take for the amount to more than double itself if we use compound interest? a) 7 b) 8 c) 9 d) 10 e) cannot be determined
Last Answer : Answer: a)
Description : If the compound interest accrued on an amount of Rs.15,000/- in two years is Rs.2,496/-.What is the rate of interest p.c.p.a.? a) 8 b) 12 c) 7.5 d) Cannot be determined e) None of these
Last Answer : Let the rate of interest p.c.p.a. be x. 2496 =15000 * x /100 x = 16.64 16.64 is the rate of interest compounded for two year & for one year = 8% 8% C.I. table for two year. I year = 8% II year = 8.64 Total =16.64% Answer: a)