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Tambaya 1 Rahoto
Which of these arrangement of elements is in order of increasing ionization energy?
Tambaya 2 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 3 Rahoto
When dust particles collide randomly in a beam of Sunlight, the phenomenon observed is known as
Tambaya 5 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 8 Rahoto
The molecular formula of ethylbutanoate is?
Tambaya 9 Rahoto
Chromatography is used to separate components of mixtures which differ in their rates of
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Tambaya 11 Rahoto
Bauxite is the ore of
Tambaya 13 Rahoto
The rate of a chemical reaction is NOT affected by one of these factors
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Tambaya 14 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 16 Rahoto
The action of zinc on an acid produces
Tambaya 17 Rahoto
\( ^{234}_{90}Th → ^{234}_{91}Pa + X \)
In the nuclear reaction above, X is
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Tambaya 20 Rahoto
The planet with the highest number of moon is
Tambaya 21 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 23 Rahoto
Which of the following compounds is unsaturated?
Tambaya 24 Rahoto
What is the colour of phenolphthalein indicator in a basic medium?
Tambaya 25 Rahoto
Chlorine atom forms Cl- by
Tambaya 26 Rahoto
The high boiling point of hydrogen fluoride can be explained in terms of?
Tambaya 27 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 28 Rahoto
The reaction of hydrochloric acid and calcium trioxocarbonate (IV) produces
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Tambaya 29 Rahoto
What type of bond holds hydrogen fluoride molecules together when forming larger aggregate?
Tambaya 30 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 31 Rahoto
A device used in the laboratory for intermittent production of gases without heating is
Tambaya 32 Rahoto
Brownian motion explains
Tambaya 33 Rahoto
The type of reaction ethyne mainly undergoes is
Tambaya 34 Rahoto
In which of the following equations can Le-chartelier’s principle be applied?
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Tambaya 35 Rahoto
Matter is neither created nor destroyed in the course of any chemical reactions is a statement of the law of
Tambaya 36 Rahoto
What is the maximum number of electrons that an f-orbital can accommodate?
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Tambaya 37 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 38 Rahoto
During the electrolysis of sodium Chloride solution, hydrogen is discharged at the carbon cathode because
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Tambaya 39 Rahoto
In which of these groups will all the substances be insoluble in water?
Tambaya 40 Rahoto
A measure of the degree of disorderliness in a chemical system is known as the
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Tambaya 42 Rahoto
The most efficient absorber of ultraviolet radiation in the atmosphere is
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