Chemistry

Which of the noble gases has the greatest ionization energy?

A. He B. Xe C. Ar D. Rr Correct Answer: Option A = He Explanation Helium has the greatest ionization…

5 years ago

Atomicity of ozone is?

A. 1 B. 2 C. 3 D. 4 Correct Answer: Option C = 3 Explanation Ozone means Oz as the…

5 years ago

When salt loses its water of crystallization to the atmosphere on exposure, the process is said to be?

A. efflorescence B. déliquescence C. effervescence D. fluorescence Correct Answer: Option A - efflorescence Explanation Efflorescence is a process of…

5 years ago

The ammonium chloride is to have undergo?

A small quantity of solid ammonium chloride (NH4Cl) texted gently in a test tube, the solid gradually disappear produce two…

5 years ago

The acid in electrolysis of water is dilute?

A. HNO3 B. CH3COOH C. H2SO4 D. HCl Correct Answer: Option C - H2SO4 Explanation H2SO4 is the acid used…

5 years ago

Vulcanization involve the removal of?

A. monometer B. the single bond C. the double bond D. a polymer Correct Answer: Option C - the double…

5 years ago

The gas that is most useful in protecting humans against solar marathon is?

A. chlorine B. ozone C. carbon IV oxide D. hydrogen sulphur Correct Answer: Option B - ozone Explanation The ozone…

5 years ago

Iron is often galvanized in order to ______?

A. Make it more malleable B. Remove the impurities unit C. Protect it against corrosion D. Render it passive Correct…

5 years ago

Which of these require crystallization most?

A. Drug making B. Cement making C. Paint making D. Perfume making Correct Answer: Option A - Drug making Explanation…

5 years ago

The filter in the cigarette reduce the nicotine construct by?

A. burning B. adsorption C. evaporation D. absorption Correct Answer: Option B - adsorption Explanation The acetate and paper modify…

5 years ago
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