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Tambaya 1 Rahoto
Which of the following laws is obeyed If at constant temperature, 200cm of hydrogen at 1.5 × 10m5Nm-2pressure becomes 300cm3 at 1.0 × 105Nm-2 pressure?
Tambaya 5 Rahoto
The most efficient absorber of ultraviolet radiation in the atmosphere is
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Tambaya 6 Rahoto
In which of the following equations can Le-chartelier’s principle be applied?
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Tambaya 7 Rahoto
Matter is neither created nor destroyed in the course of any chemical reactions is a statement of the law of
Tambaya 8 Rahoto
If two elements X and Z with electronic configurations 2,8.3 and2,8,6 respectively combine, the compound formed will have the formula
Tambaya 9 Rahoto
Which of the following compounds is unsaturated?
Tambaya 10 Rahoto
What is the colour of phenolphthalein indicator in a basic medium?
Tambaya 11 Rahoto
Chromatography is used to separate components of mixtures which differ in their rates of
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Tambaya 12 Rahoto
What type of bond holds hydrogen fluoride molecules together when forming larger aggregate?
Tambaya 13 Rahoto
When sodium hydroxide solution is added to a solution of zinc salt, the white precipitate formed re-dissolve in excess sodium hydroxide because
Tambaya 15 Rahoto
The molecular formula of ethylbutanoate is?
Tambaya 18 Rahoto
An element Z has a combining power of 3. Which of the following formulae is correct of its compound?
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Tambaya 19 Rahoto
\( ^{234}_{90}Th → ^{234}_{91}Pa + X \)
In the nuclear reaction above, X is
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Tambaya 21 Rahoto
Brownian motion explains
Tambaya 22 Rahoto
During the electrolysis of sodium Chloride solution, hydrogen is discharged at the carbon cathode because
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Tambaya 23 Rahoto
The planet with the highest number of moon is
Tambaya 24 Rahoto
A measure of the degree of disorderliness in a chemical system is known as the
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Tambaya 25 Rahoto
Chlorine atom forms Cl- by
Tambaya 26 Rahoto
If two metallic ions of the same concentration migrate to a graphite cathode, the one that would be preferentially discharged is that with the
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Tambaya 28 Rahoto
What is the maximum number of electrons that an f-orbital can accommodate?
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Tambaya 29 Rahoto
In which of these groups will all the substances be insoluble in water?
Tambaya 30 Rahoto
Bauxite is the ore of
Tambaya 31 Rahoto
The type of reaction ethyne mainly undergoes is
Tambaya 32 Rahoto
The rate of a chemical reaction is NOT affected by one of these factors
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Tambaya 35 Rahoto
Which of the following will Increase the rate of reaction of Chips of a metal M as shown in the equation below?
M(s)+2HC1(aq) → MCI2 (aq) + H2(g)
Tambaya 36 Rahoto
Which of these arrangement of elements is in order of increasing ionization energy?
Tambaya 37 Rahoto
The action of zinc on an acid produces
Tambaya 38 Rahoto
The high boiling point of hydrogen fluoride can be explained in terms of?
Tambaya 39 Rahoto
The reaction of hydrochloric acid and calcium trioxocarbonate (IV) produces
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Tambaya 40 Rahoto
When dust particles collide randomly in a beam of Sunlight, the phenomenon observed is known as
Tambaya 41 Rahoto
A solution is prepared by dissolving I .96g of H2SO4 in 250 cm3 of its solution. What is the concentration in moles per dm3?
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Tambaya 42 Rahoto
A device used in the laboratory for intermittent production of gases without heating is
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