Which of the following corresponds to the electronic configuration 1s², 2s²,2p⁶
Which of the following corresponds to the electronic configuration 1s², 2s²,2p⁶,3s² Options (a) Magnesium (b) Helium (c) Argon (d) Sodium…
7 years ago
Chemistry
Bleaching powder is obtained by treating Cl₂ with
Bleaching powder is obtained by treating Cl₂ with Options (a) CaOCl₂ (b) CaO (c) Ca(OH)₂ solution (d) CaCO₃ Correct Answer:…
7 years ago
Gas A is bubbled through slacked lime, a white precipitate is formed.
Gas A is bubbled through slacked lime, a white precipitate is formed. On prolonged bubbling the precipitate is dissolved. On…
7 years ago
The number of hydroxide ions produced by one molecule of sodium carbonate
The number of hydroxide ions produced by one molecule of sodium carbonate (Na₂CO₃) on hydrolysis is Options (a) 3 (b)…
7 years ago
Which of the following is not soluble in NaOH
Which of the following is not soluble in NaOH Options (a) Fe(OH)₃ (b) Zn(OH)₂ (c) Al(OH)₃ (d) Sn(OH)₂ Correct Answer:…
7 years ago
Plaster of paris is used
Plaster of paris is used Options (a) in surgery and dentistry (b) as a white wash (c) as a constituent…
7 years ago
Magnesium does not decompose in
Magnesium does not decompose in Options (a) steam (b) hot water (c) cold water (d) semi-hot water Correct Answer: cold…
7 years ago
K₂Cr₂O₇ on heating with aqueous NaOH gives
K₂Cr₂O₇ on heating with aqueous NaOH gives Options (a) CrO₄²⁻ (b) Cr(OH)₃ (c) Cr₂O₇²⁻ (d) Cr(OH)₂ Correct Answer: CrO₄²⁻Explanation:No explanation…
7 years ago
Bleaching powder is obtained by treating chloride with
Bleaching powder is obtained by treating chloride with Options (a) CaO (b) CaSO₄ (c) CaCO₃ (d) Ca(OH)₂ Correct Answer: Ca(OH)₂Explanation:No…
7 years ago
Grignard reagent is prepared by the reaction between
Grignard reagent is prepared by the reaction between Options (a) zinc and alkyne (b) magnesium and alkane (c) zinc and…
7 years ago