Helium is often used in observation balloons because it i...
Helium is often used in observation balloons because it is?
light and combustible
light and non-combustible
heavy and combustible
heavy and non-combustible
Correct answer is B
No explanation has been provided for this answer.
The chromatography separation of ink is based on the ability of the components to ...
In recharging a lead-acid accumulator, the reaction at the cathode can be represented as ...
Benzene reacts with hydrogen in the presence of nickel catalyst at 180ºC to give? ...
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Which of the following salts is slightly soluble in water? ...
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Which of the following statements is true about ionic radius? Ionic radius ...
What is the product Cx Hy in the following equation? C10H22 → C8H18 + ...
Which important nitrogen-containing compound is produced in Haber's process? ...