Pollution of underground water by metal ions is very likely in the soil that has…
Pollution of underground water by metal ions is very likely in the soil that has high A. acidity…
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The property of chlorine which causes hydrogen chloride to be more ionic than the chlorine…
The property of chlorine which causes hydrogen chloride to be more ionic than the chlorine molecules is its…
Chlorine consisting of two isotopes of mass number 35 and 37 in the ratio 3:1…
Chlorine consisting of two isotopes of mass number 35 and 37 in the ratio 3:1 has an atomic…
The shape of s-orbitals is
The shape of s-orbitals is A. spherical B. elliptical C. spiral D. circular Correct Answer: Option A Explanation
22688Ra → x86Rn + α – particle What is the value of x in the…
22688Ra → x86Rn + α – particle What is the value of x in the nuclear reaction above?…
A given volume of methane diffuses in 20s. How long will it take the same…
A given volume of methane diffuses in 20s. How long will it take the same volume of sulphur…
An electron can be added to a halogen atom to form a halide ion with
An electron can be added to a halogen atom to form a halide ion with A. 2 valence…
According to charles’ law, the volume of a gas becomes zero at
According to charles’ law, the volume of a gas becomes zero at A. 0 oC B. -100 oC…
It is difficult to achieve an orderly arrangement of the molecules of a gas because…
It is difficult to achieve an orderly arrangement of the molecules of a gas because they A. have…
If a solution contains 4.9g of tetraoxosulphate (VI) acid, calculate the amount of copper (II)…
If a solution contains 4.9g of tetraoxosulphate (VI) acid, calculate the amount of copper (II) oxide that will…