Click to see jamb physics and chemistry answers for 3:00PM today

[3/9, 11:39 PM] Click: CHEMISTRY – 3PM 1 :- the element with an electron configuration 1s2 2s2 2p6 3s23p64s2 CORRECT ANSWER = a noble gas 2 :- ethanoic acid is monobasic because its CORRECT ANSWER = has one replaceable hydrogen molecule 3 :- the type of bond in nitrogen molecule is CORRECT ANSWER = covalent 4 :- in the hydrogenation of benzene, the catalyst used is CORRECT ANSWER = Ni 5 :- the acid found in sour milk is CORRECT ANSWER = lactic acid 6 :- transition metals with higher oxidation state will form oxides that are CORRECT ANSWER = basic 7 :- the iupac nomenclature of the compound above is CORRECT ANSWER = pent-2-yne 8 :- in the diagram above X is CORRECT ANSWER = H2 9 :- if 200cm3 of oxygen passes through a porous plug in 100sec.find the time taken for the same volume of hydrogen to pass through the same porous plug CORRECT ANSWER = 25 GET YOUR 2018 WAEC QUESTIONS AND ANSWERS 3 HOURS BEFORE THE EXAM AND MAKE 7A’s AND 2B’s IN YOUR WAEC RESULT.. Call/WhatsApp +2349075947866 Or click 👇 https://api.whatsapp.com/send?phone=2349075947866 10 :- the method used in purifying sugar is CORRECT ANSWER = crystallization 11 :- the activation energy of a chemical reaction can be lowered by CORRECT ANSWER = the addition of a catalyst 12 :- in the equation above X is CORRECT ANSWER = CH3COOCH2CH3 13 :- a solubility curve is a plot of the solubility of solute against CORRECT ANSWER = TEMPERATURE 14 :- the method that is not economical for the removal of hardness in water for town supply is CORRECT ANSWER = permutit 15 :- in the electrolytic extraction of sodium from fused sodium chloride calcium chloride is usually added to CORRECT ANSWER = remove impurities 16 :- grades of petrol having octane number nearer zero will cause a motor car engine to ‘ CORRECT ANSWER = 17 :- nickel is plated on steel to CORRECT ANSWER = increase its strength 18 :- the solubility in mol/dm3 of 20.2g of potassium trioxonitrate(V)dissolved in 100g of water at room temperature is CORRECT ANSWER = 2 19 :- what is the atomic number of an element having 127 neutrons and 82 electrons CORRECT ANSWER = 82 GET YOUR 2018 WAEC QUESTIONS AND ANSWERS 3 HOURS BEFORE THE EXAM AND MAKE 7A’s AND 2B’s IN YOUR WAEC RESULT.. Call/WhatsApp +2349075947866 Or click 👇 https://api.whatsapp.com/send?phone=2349075947866 20 :- 28.80CM3 OF NITROGEN AT 15c is cooled to 0C.its volue ar constant pressure is CORRECT ANSWER = 27.3 21 :- what physical property of alkane decreases as the number of carbon atoms increases CORRECT ANSWER = solubility 22 :- which of the following substances are made by polymeriztion CORRECT ANSWER = nylon and artificial rubber 23 :- which of the following compounds is unsaturated CORRECT ANSWER = methylbenzene 24 :- a compound contains 31.9% potassium 28.93 chlorine and the remaining oxygen.what is the chemical formula of the compound?\ CORRECT ANSWER = KClO2 25 :- the use of neon light in aerodome beacons is due to its CORRECT ANSWER = COLOUR 26 :- K4Fe(CN)6 is an example of a CORRECT ANSWER = complex 27 :- if T change in s is small relative to change in H at room temperature the value of change in G will be CORRECT ANSWER = positive 28 :- the solibility of alkanols in water is due to the presence of CORRECT ANSWER = hydroxyl group 29 :- when lubricating oil is redistilled,it yields CORRECT ANSWER = petroleum jelly 30 :- the iupac nomenclature of K2Cr2O7 SI CORRECT ANSWER = potassium heptaoxochromate(VI) 31 :- ALKYNES BURN WITH SMOKY LUMINOUS FLAME DUE TO HIGH CORRECT ANSWER = carbon content 32 :- ozone is known for its ability to CORRECT ANSWER = attack the respiratory tract of organisms GET YOUR 2018 WAEC QUESTIONS AND ANSWERS 3 HOURS BEFORE THE EXAM AND MAKE 7A’s AND 2B’s IN YOUR WAEC RESULT.. Call/WhatsApp +2349075947866 Or click 👇 https://api.whatsapp.com/send?phone=2349075947866 33 :- which of the following properties is peculiar to graphite? CORRECT ANSWER = it is unreactive 34 :- calculate the amount in moles of zinc that will be deposited by passing 10 faradays of elctricity through a solution of zinc salt CORRECT ANSWER = 5 35 :- the air pollutant that dissolves in water due to produce acid rain is CORRECT ANSWER = O3 36 :- the property pecuiliar to pure oxygen is that it CORRECT ANSWER = is lighter than air 37 :- the principal property that determines the method of an extraction of a metal from its oe is its CORRECT ANSWER = position in the activity series 38 :- when water is added to calcium oxide,it forms CORRECT ANSWER = calcium hydroxide 39 :- in the reaction above, the reverse reaction can be favored by CORRECT ANSWER = decreases the temperature 40 :- an element with electron configuration 1s2 2s2 2p6 3s2 3p4 belongs to the CORRECT ANSWER = p-block GET YOUR 2018 WAEC QUESTIONS AND ANSWERS 3 HOURS BEFORE THE EXAM AND MAKE 7A’s AND 2B’s IN YOUR WAEC RESULT.. Call/WhatsApp +2349075947866 Or click 👇 https://api.whatsapp.com/send?phone=2349075947866 [3/9, 11:49 PM] Click: JAMB 09/03/2018 Physics answers 3:00pm ANSWER = 4.33n ANSWER = 0.5A ANSWER = I, II and III ANSWER = maximum ANSWER = electroysis ANSWER = 200C ANSWER = minimum potention energy ANSWER = uneven expansion ANSWER = beaker IV ANSWER = mass ANSWER = 82 0C ANSWER = travel at different speeds ANSWER = 5.56 x 10 -4 m 3 ANSWER = (q / 4Er) CORRECT ANSWER = 0.25 {3 J ANSWER = W0 = 1/Lc ANSWER = Gm1 m2/4r2 ANSWER= angular magnification ANSWER= beyond the centre ANSWER = 1/sinQ ANSWER = intrinsic semi-conductor ANSWER = potention energy is maximum at the extremes ANSWER = f & square root T) ANSWER = H mmHg ANSWER = E = hf ANSWER = thermianic emission ANSWER = at the boundary between ANSWER = 6V ANSWER = in a dynamic equilibrium ANSWER = prevents heat loss and gain ANSWER = 1.5N ANSWER = radiation ANSWER = 60.00N ANSWER = a plucked stretched s tring ANSWER = W1/(W1-W2) ANSWER = its higher pressure ANSWER = 0.14m ANSWER = north – south direction ANSWER = terminal velocity GET YOUR 2018 WAEC QUESTIONS AND ANSWERS 3 HOURS BEFORE THE EXAM AND MAKE 7A’s AND 2B’s IN YOUR WAEC RESULT.. 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