Stats: 3,182,515 members, 7,917,617 topics. Date: Sunday, 11 August 2024 at 11:28 AM |
Nairaland Forum / Tboy08's Profile / Tboy08's Posts
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ANDREW2EIC:good trial,but the best option is (c) carbonyl group react with hydrazine and its derivatives known has condensation reaction....... RRC{O + H2}N3.... |
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1)Which of there undergoes condensation reaction a)alkanol b)amine c)alkanal d)haloalkane 2)which of the following react with NaOH to give double salts? a)S02 b)S03 c)P04 d)N02 |
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A particle in a straight line specified by the equation y=4t^4 - 3t^3.find the acceleration after 3 seconds. |
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@fynestbarrister a sum of #500,it comprises all my subject combination |
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ANDREW2EIC: Attempt this:focal lenght=15 mirror's equation=>1/f=1/u + 1/v since the image produced is 4 times the object.therefore 1v=4u. So, 1/15=1/u + 1/4u u=75/4 u=+18.75cm(since it's a concave mirror) |
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@fynestbarrister ekiti, .... someone from oau bought it and sent it to me... |
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......WE ARE SORRY,WE JUST HAVE TO CLOSE THIS THREAD!!!
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@fynestbarrister,me don get the oau series ooo |
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fynestbarrister: by GODS GRACEWHAT OF ENGLISH? |
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THREAD CLOSED !!! THREAD CLOSED !!! THREAD CLOSED !!! |
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THREAD CLOSED !!! |
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buzyguy: Dat optn b z incorrct cuz i thnk copper z used instead of ironyes you're wright,that was an error....duralunium=cu,mg,mn,al |
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topsonkay: Ijn. 300 jamb scores for we all. Can i hear anybody saying "Amen"AMEN,AMEN,AMEN,AMEN...... |
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What is the composition of the alloy duraluminium. a)al,cu,co,fe b)al,mg,mn,fe c)al,ni,c,di d)al,Na,fe,zn in a light spectrum,which colour has the highest speed? a)green b)red c)blue d)violet |
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buzyguy: Which molecule hz da least chemical reactivity?a.N b.Cl c.O d.iodinea N2 requires +3 which is the highest in the above list to obtain a stable octet configuration |
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buzyguy: Which of the follown atoms has the follwn,n=3,l=0,m=3orbitals,s=+1/2 or -1/2?a.Na b.Ne c.Al d.Sithe value of L can't be 0 since n=3,so L must be definately =2 |
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ANDREW2EIC:wao @andrew,i've gained from that explanation of yours... I think it can also be solved this way, from the law of conservation of energy { F=Mv/t} since f=30N,M=0.075kg,t=0.05 then make v the subject of the formula and solve.the final answer will be 20 N/s |
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olatosina: which of dis has banana smelli think is A |
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olatosina: love u guys. Take dis.A |
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mayorall: Which of the following will undergo substitution reaction?B (From alkane CnH2n+2) |
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buzyguy: Sodium metal is easier to cut with a knife than a calcium metal bcus,a.its found in group 1 b.its nt totally considered as metal c.its soft d. its crystals r planar in shapeit's soft,(property of group 1 metal) |
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buzyguy: Watz da funtn of calcium fluoride in the xtractn of ca?a.to prevent damag of electrdes b.to raise da meltn point of da electroly c.for economic purpose d.to reduce the rate of da reactni think CaF reduces the melting point during extraction of Ca |
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buzyguy: Watz da funtn of da mixture of argon-nitrogen in filling lamp filament or bulb?a.prevents reductn by air b.prevents oxidatn by co2 c.prevents blackening d.prevents rustn of da filamenti think there are two answers there,1=it prevent oxidation in filament lamp and then prevent blackening.but it seems both have thesame meaning chemicaly |
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Michaellegend:the first stage is coagulation i.e flucking together the dirts followed by sedimentation=selling of the dirt,followed by filtration=removal of dirt followed by disinfection=treatment of water by chlorination or any other means before it is supplied to town... |
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edreesabiodun: Which of the following is insoluble in water a) ethanol b) HCl c) ether d) NH3. (2) which of the ffg will form a white precipitate with AgNO3 a) Butane b) ethene c) ethyne d) benzene 3)ethene will change the colour of KMnO4 from purple to what in an alkaline medium a)brown, b)yellow c)green d) reddish brownas for me,i think kMn04 is always decolourized from purple to colourless via additional reaction with ethene 1 Like |
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buzyguy: Benzene is sp2 hybridized while ethyne is sp hybridized.the more the pi-bond encounterd the more the reactivity.the pi-bond distorts da shape nd increase da bond angle by reducing the repulsion btwn da molecules.hop itz wel clear!you're correct.besides,what school are you aspiring and what course? |
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Simplefemo: A man stands one-third of the way between two walls and claps his hands.echo=2v/d . : v=330/1=330m/s 2=2*330/d d=660/2 . : d=330m since the question says 1/3 of d, d=1/3 * 330 d=110m ans ![]() 1 Like |
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Simplefemo:you're wrong sir |
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When a solution containing a concentrated HCl is heated,the solution a)remain costant b)the concentration increases c)the solution becomes dilute d)the solution explode. |
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Simplefemo:correcttttttttttt@atesunate and simplefemo |
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Which of the following is the ore of cupper? A)malachite b)bauxite c)galena d)gypsum |
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Simplefemo: Lucas reagent is used to test forC (alkanols) |
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