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Tambaya 2 Rahoto
Which of the following gases is absorbed from the air dun photosynthesis?
Bayanin Amsa
Tambaya 3 Rahoto
The scientist who discovered the zig-zag movement of gas molecules is
Tambaya 6 Rahoto
Non-polar molecules are held together by
Tambaya 7 Rahoto
Compound with the general formula CnH\(_{2n+2}\) belong to the_______ group
Tambaya 10 Rahoto
Which of the following non-metals reacts most readily with metals?
Tambaya 11 Rahoto
What volume of carbon (IV) oxide in dm 3 is produced at s.t.p. when 2.50g of CaCO3 reacts with excess acid according to the following equation? CaCO3(s) + 2HCI(aq) → CaCl2(aq) + H2O(1) + CO2(g)
[CaCO2 100; molar volume of a gas at s.t.p. = 22.4dm 3]
Tambaya 12 Rahoto
Which of the following is NOT a fraction of petroleum?
Tambaya 13 Rahoto
A colourless gas with characteristics odour which dissolves in water to form an alkaline solution is
Tambaya 14 Rahoto
How many atoms of chlorine are required to saturate the double bonds of a compound containing a triene?
Tambaya 15 Rahoto
Which of the following statements is NOT correct of group VII elements? They
Tambaya 18 Rahoto
The process involved in the decomposition of sugar by an enzyme is called
Tambaya 19 Rahoto
The percentage composition of a hydrocarbon is 79.2 carbon 20.8 hydrogen. Calculate its empirical formula [H = 1, C = 12]
Bayanin Amsa
Tambaya 21 Rahoto
The rate of a reaction usually increases with increase in the concentration of reactants because the
Tambaya 22 Rahoto
C\(_6\)H\(_{12}\)O\(_6\)
What is the molar mass of the compound above?
[ H=1, C=12, O=16 }
Tambaya 23 Rahoto
Which of the following gases will bleach moist litmus paper?
Tambaya 24 Rahoto
The reaction of an alkanol with alkanioc acid is known as
Tambaya 27 Rahoto
Brain tumors can be located by using an isotope of
Tambaya 28 Rahoto
Sulphur has an oxidation number of +4 in
Tambaya 29 Rahoto
\( ^{235}_{92}U + ^1_0n → ^{145}_{56}Ba + ^{88}_{36}Kr + 3^1_0n + Energy \)
The equation above represent a/an
Tambaya 30 Rahoto
What mass of copper in gram would be deposited by a current of 1.00ampere passing for 965 seconds through copper(II) tertraoxosulphate (VI) solution? [Cu 63.5; If = 96500c]
Bayanin Amsa
Tambaya 31 Rahoto
Which of the following equations is NOT balanced?
Tambaya 32 Rahoto
The Ideal Gas Law is expressed mathematically as
Tambaya 33 Rahoto
Ptotal = P1 + P2 + P3 +…………. Pn, is an expression of law
Tambaya 34 Rahoto
The following compounds decolorize acidified potassium tetraoxomanganate (VII) solution EXCEPT
Bayanin Amsa
Tambaya 35 Rahoto
In the electrolysis of dilute tetraoxosulphate (VI) acid using platinum electrodes, the products obtained at the anode are cathode respectively are
Bayanin Amsa
Tambaya 36 Rahoto
When air is passed through alkaline pyrogallol and then lime water, the gases left are
Bayanin Amsa
Tambaya 37 Rahoto
The empirical formula of a hydrocarbon containing 0.12 mole of carbon 0.3 mole of hydrogen is
Bayanin Amsa
Tambaya 39 Rahoto
The relationship between equilibrium constant and free energy change is represented as
Tambaya 40 Rahoto
A neon atom is chemically nonreactive because
Tambaya 42 Rahoto
What kind of bond exist between carbon and oxygen in C03 2-?
Tambaya 44 Rahoto
The green house effect is a climatic condition associated with the presence of excess
Bayanin Amsa
Tambaya 45 Rahoto
If the volume of a gas at 35°C is 60cm3, what would be its volume in cm3 at 273k?
Tambaya 46 Rahoto
During the extraction of iron in the blast furnance, slag is produced using
Bayanin Amsa
Tambaya 47 Rahoto
Two elements X and Y with electronic configurations 2,8,2 and 2,8,7 respectively, are likely to combine by _________bonding
Za ka so ka ci gaba da wannan aikin?