What is the formula of bleaching powder
Options
(a) CaO(OCl) (b) Ca(OCl)Cl (c) Ca(OCl)₂ (d) Ca(OCl)₂Cl
Correct Answer:
Ca(OCl)Cl
Explanation:
Main Active Ingredients for the commercial products called Bleaching Powder, chlorine powder (or) chlorinated […]
Due to reference in biological role, Ca²⁺ ions are important in
Options
(a) Defence mechanism (b) Triggering the contraction of muscles (c) Formation of ATP (d) Generating right electrical potential across cell membrane
Which of the following compound react with NaHCO3 solution to give sodium salt and carbon dioxide
Options
(a) Phenol (b) Acetic acid (c) n-hexanol (d) Nitric acid
Correct Answer:
Acetic acid
Explanation:
CH₃COOH(Acetic […]
Calcium is obtained by the
Options
(a) electrolysis of solution of calcium chloride in water (b) electrolysis of molten anhydrous calcium chloride (c) roasting of limestone (d) reduction of calcium chloride with carbon
Identify the feasible reaction among the following
Options
(a) K₂CO₃ →K₂O + CO₂ (b) Na₂CO₃ → Na₂O + CO₂ (c) Li₂CO₃ → Li₂O + CO₂ (d) Rb₂CO₃ → Rb₂O+ CO₂
Correct Answer:
Li₂CO₃ […]
Which of the following does not decompose on heating
Options
(a) MgCO₃ (b) Na₂CO₃ (c) Li₂CO₃ (d) Ca(HCO₃)₂
Correct Answer:
Na₂CO₃
Explanation:
No explanation available. Be the first to write the explanation for […]
The case of adsorption of the hydrated alkali metal ions on an ion-exchange resins follows the order:
Options
(a) Li⁺ < K⁺ < Na⁺ < Rb⁺ (b) Rb⁺ < K⁺ < Na⁺ < […]
Which one of the alkali metals, forms only, the normal oxide, M₂O on heating in air
Options
(a) Rb (b) K (c) Li (d) Na
Correct Answer:
Li
Explanation:
When alkali metals heated […]
Which one of the following is present as an active ingredient in bleaching powder for bleaching action
Options
(a) CaOCl₂ (b) Ca(OCl)₂ (c) CaO₂Cl (d) CaCl₂
Correct Answer:
Ca(OCl)₂
Explanation:
No explanation available. […]
Which of the following compounds is a peroxide
Options
(a) KO₂ (b) BaO₂ (c) MnO₂ (d) NO₂
Correct Answer:
BaO₂
Explanation:
No explanation available. Be the first to write the explanation for this […]
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