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Tambaya 1 Rahoto
Which of the following is NOT a fraction of petroleum?
Tambaya 3 Rahoto
Which of the following non-metals reacts most readily with metals?
Tambaya 5 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 6 Rahoto
Non-polar molecules are held together by
Tambaya 7 Rahoto
Sulphur has an oxidation number of +4 in
Tambaya 8 Rahoto
How many atoms of chlorine are required to saturate the double bonds of a compound containing a triene?
Tambaya 10 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 11 Rahoto
When air is passed through alkaline pyrogallol and then lime water, the gases left are
Bayanin Amsa
Tambaya 13 Rahoto
The Ideal Gas Law is expressed mathematically as
Tambaya 15 Rahoto
The following compounds decolorize acidified potassium tetraoxomanganate (VII) solution EXCEPT
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Tambaya 16 Rahoto
Which of the following statements is NOT correct of group VII elements? They
Tambaya 17 Rahoto
What kind of bond exist between carbon and oxygen in C03 2-?
Tambaya 18 Rahoto
The scientist who discovered the zig-zag movement of gas molecules is
Tambaya 19 Rahoto
If the volume of a gas at 35°C is 60cm3, what would be its volume in cm3 at 273k?
Tambaya 20 Rahoto
Which of the following gases is absorbed from the air dun photosynthesis?
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Tambaya 21 Rahoto
\( ^{235}_{92}U + ^1_0n → ^{145}_{56}Ba + ^{88}_{36}Kr + 3^1_0n + Energy \)
The equation above represent a/an
Tambaya 22 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 24 Rahoto
The rate of a reaction usually increases with increase in the concentration of reactants because the
Tambaya 25 Rahoto
Which of the following gases will bleach moist litmus paper?
Tambaya 26 Rahoto
During the extraction of iron in the blast furnance, slag is produced using
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Tambaya 27 Rahoto
The green house effect is a climatic condition associated with the presence of excess
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Tambaya 28 Rahoto
The reaction of an alkanol with alkanioc acid is known as
Tambaya 31 Rahoto
Two elements X and Y with electronic configurations 2,8,2 and 2,8,7 respectively, are likely to combine by _________bonding
Tambaya 32 Rahoto
Compound with the general formula CnH\(_{2n+2}\) belong to the_______ group
Tambaya 33 Rahoto
Brain tumors can be located by using an isotope of
Tambaya 34 Rahoto
The relationship between equilibrium constant and free energy change is represented as
Tambaya 36 Rahoto
The empirical formula of a hydrocarbon containing 0.12 mole of carbon 0.3 mole of hydrogen is
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Tambaya 37 Rahoto
C\(_6\)H\(_{12}\)O\(_6\)
What is the molar mass of the compound above?
[ H=1, C=12, O=16 }
Tambaya 38 Rahoto
The process involved in the decomposition of sugar by an enzyme is called
Tambaya 41 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 42 Rahoto
A neon atom is chemically nonreactive because
Tambaya 43 Rahoto
A colourless gas with characteristics odour which dissolves in water to form an alkaline solution is
Tambaya 44 Rahoto
Ptotal = P1 + P2 + P3 +…………. Pn, is an expression of law
Tambaya 45 Rahoto
Which of the following equations is NOT balanced?
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