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Home/Questions/Q 4359
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kutus@2005
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kutus@2005
Asked: September 15, 20202020-09-15T12:21:19+05:30 2020-09-15T12:21:19+05:30In: Class-10

Physical science

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āϤāĻžāĻŽāĻžāϝāĻŧ āϤāĻĄāĻŧāĻŋāĻĻā§ āĻŦāĻŋāĻļā§‹āϧāύ⧇ āĻ•āĻĒāĻžāϰ āϏāĻžāϞāĻĢ⧇āϟ āĻĻā§āϰāĻŦāύ⧇ āϕ⧋āύ āĻ…ā§āϝāĻžāϏāĻŋāĻĄ āĻŽā§‡āĻļāĻžāύ⧋ āĻšāϝāĻŧ ?

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    1. Apurba maity
      2020-09-15T12:48:34+05:30Added an answer on September 15, 2020 at 12:48 pm

      āĻ•āĻĒāĻžāϰ⧇āϰ āϤāĻĄāĻŧāĻŋā§Ž āĻŦāĻŋāĻļā§‹āϧāύ cuso4 āĻāϰ āĻĻā§āϰāĻŦāϪ⧇ āϞāϘ⧁ āϏāĻžāϞāĻĢāĻŋāωāϰāĻŋāĻ• āĻāϏāĻŋāĻĄ āĻŽā§‡āĻļāĻžāύ⧋ āĻšāϝāĻŧāĨ¤ āĻāχ āĻĒāĻĻā§āϧāϤāĻŋāϤ⧇ āĻĒā§āϰāĻžāĻĒā§āϤ āĻ•āĻĒāĻžāϰ āĻĒā§āϰāĻžāϝāĻŧ 99.99% āĻŦāĻŋāĻļ⧁āĻĻā§āϧ āĻšāϝāĻŧāĨ¤āĻāχ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϝāĻŧ āĻ…ā§āϝāĻžāύ⧋āĻĄā§‡ āωāĻĒāĻ¸ā§āĻĨāĻŋāϤ āĻ…āĻļ⧁āĻĻā§āϧāĻŋ āϗ⧁āϞāĻŋ āĻ…ā§āϝāĻžāύ⧋āĻĄ āĻāϰ āύāĻŋāĻšā§‡ āĻ•āĻžāĻĻāĻžāϰ āĻŽāϤ⧋ āϜāĻŽāĻž āĻšāϝāĻŧ ,āĻāϕ⧇ āĻŦāϞāĻž āĻšāϝāĻŧ āĻ…ā§āϝāĻžāύ⧋āĻĄ āĻŽāĻžāĻĄ āĨ¤āĻāχ āĻ…ā§āϝāĻžāύ⧋āĻĄ āĻŽāĻžāĻĄā§‡ āĻ…āύ⧇āĻ• āĻŽā§‚āĻ˛ā§āϝāĻŦāĻžāύ āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ āϧāĻžāϤ⧁ āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāϝāĻŧ āϝ⧇āĻŽāύ āϏ⧋āύāĻž, āϰ⧁āĻĒāĻž āĨ¤

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    2. Best Answer
      Nahid TECHNOLOGY IN EDUCATION
      2020-09-16T11:12:06+05:30Added an answer on September 16, 2020 at 11:12 am

      āĻ•āĻĒāĻžāϰ āϏāĻžāϞāĻĢ⧇āĻŸā§‡āϰ āϜāĻ˛ā§€ā§Ÿ āĻĻā§āϰāĻŦāϪ⧇āϰ āϤ⧜āĻŋā§ŽāĻŦāĻŋāĻļā§āϞ⧇āώāĻŖ :- CuSO4 āϜāϞ⧇ āĻ†ā§ŸāύāĻŋāϤ āĻšā§Ÿā§‡ Cu2+ āĻāĻŦāĻ‚ SO42- āĻ†ā§Ÿāύ āωāĻ¤ā§āĻĒāĻ¨ā§āύ āĻ•āϰ⧇ āĨ¤ āϏ⧁āϤāϰāĻžāĻ‚, āϜāĻ˛ā§€ā§Ÿ āĻĻā§āϰāĻŦāϪ⧇ āϚāĻžāϰ āĻĒā§āϰāĻ•āĻžāϰ āĻ†ā§Ÿāύ āĻĨāĻžāϕ⧇, āĻĻ⧁āϧāϰāύ⧇āϰ āĻ•ā§āϝāĻžāϟāĻžā§ŸāĻžāύ H+ āĻ“ Cu2+ āĻāĻŦāĻ‚ āĻĻ⧁ āϧāϰāύ⧇āϰ āĻ…ā§āϝāĻžāύāĻžā§Ÿāύ OH- āĻ“ SO42- āĨ¤

      H2O⇌H++OH− ; CuSO4⇌Cu2++SO2−4
      āĻāχāϰ⧂āĻĒ āĻĻā§āϰāĻŦāϪ⧇āϰ āϤ⧜āĻŋā§ŽāĻŦāĻŋāĻļā§āϞ⧇āώāϪ⧇ āωāĻ¤ā§āĻĒāĻ¨ā§āύ āĻĒāĻĻāĻžāĻ°ā§āĻĨ, āĻŦā§āϝāĻŦāĻšā§ƒāϤ āϤ⧜āĻŋāĻĻā§āĻĻā§āĻŦāĻžāϰ⧇āϰ āĻ“āĻĒāϰ āύāĻŋāĻ°ā§āĻ­āϰ āĻ•āϰ⧇, āϝāĻĨāĻžâ€”

      [āĻ•] āĻĒā§āĻ˛ā§āϝāĻžāϟāĻŋāύāĻžāĻŽ āϤ⧜āĻŋāĻĻā§āĻĻā§āĻŦāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāϞ⧇, āĻ•ā§āϝāĻžāĻĨā§‹āĻĄā§‡ H+ āĻ†ā§Ÿāύ āĻŽā§āĻ•ā§āϤ āύāĻž āĻšā§Ÿā§‡ Cu2+ āĻ†ā§Ÿāύ āĻŽā§āĻ•ā§āϤ āĻšāĻŦ⧇, āĻ•āĻžāϰāĻŖ H+ āĻ†ā§Ÿāύ āĻ…āĻĒ⧇āĻ•ā§āώāĻž Cu2+ āĻ†ā§Ÿāύ⧇āϰ āχāϞ⧇āĻ•āĻŸā§āϰāύ āĻ—ā§āϰāĻšāϪ⧇āϰ āĻĒā§āϰāĻŦāĻŖāϤāĻž āĻŦ⧇āĻļāĻŋ (āĻŦāĻŋāϜāĻžāϰāĻŖ āĻŦāĻŋāĻ­āĻŦ āĻŦ⧇āĻļāĻŋ) āĻāĻŦāĻ‚ āĻ…ā§āϝāĻžāύ⧋āĻĄā§‡ SO42= āĻ†ā§ŸāύImage removed. āĻŽā§āĻ•ā§āϤ āύāĻž āĻšā§Ÿā§‡ OH- āĻ†ā§Ÿāύ āĻŽā§āĻ•ā§āϤ āĻšāĻŦ⧇ āĨ¤ āĻ…āĻ°ā§āĻĨāĻžā§Ž āĻ•ā§āϝāĻžāĻĨā§‹āĻĄā§‡ āϧāĻžāϤāĻŦ Cu āĻāĻŦāĻ‚ āĻ…ā§āϝāĻžāύ⧋āĻĄā§‡ O2 āĻ—ā§āϝāĻžāϏ āωāĻ¤ā§āĻĒāĻ¨ā§āύ āĻšā§Ÿ āĨ¤

      āĻŦāĻŋāĻ•ā§āϰāĻŋ⧟āĻž : āĻ•ā§āϝāĻžāĻĨā§‹āĻĄā§‡: Cu2+ + 2e → 2Cu↓

      āĻ…ā§āϝāĻžāύ⧋āĻĄā§‡: OH- – e → [OH] ; 4[OH] = 2H2O + O2↑

      [āĻ–] āĻ•āĻĒāĻžāϰ āϤ⧜āĻŋāĻĻā§āĻĻā§āĻŦāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāϞ⧇, Cu2+ āĻ†ā§Ÿāύ āĻ•ā§āϝāĻžāĻĨā§‹āĻĄā§‡ āĻ—āĻŋā§Ÿā§‡ āĻ•ā§āϝāĻžāĻĨā§‹āĻĄ āĻĨ⧇āϕ⧇ āχāϞ⧇āĻ•āĻŸā§āϰāύ āĻ—ā§āϰāĻšāĻŖ āĻ•āϰ⧇ āĻāĻŦāĻ‚ āϧāĻžāϤāĻŦ Cu āĻ•ā§āϝāĻžāĻĨā§‹āĻĄā§‡ āϏāĻžā§āϚāĻŋāϤ āĻšā§Ÿā§‡ āĻ•ā§āϝāĻžāĻĨā§‹āĻĄā§‡āϰ āĻ“āϜāύ āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰ⧇ āĨ¤ SO42- āĻ†ā§Ÿāύ āĻ…ā§āϝāĻžāύ⧋āĻĄā§‡ āϝāĻžā§Ÿ āĻ•āĻŋāĻ¨ā§āϤ⧁ āϏ⧇āĻ–āĻžāύ⧇ āĻŽā§āĻ•ā§āϤ āĻšā§Ÿ āύāĻž āĨ¤ āĻ…ā§āϝāĻžāύ⧋āĻĄā§‡āϰ āĻ•āĻĒāĻžāϰ āĻĒāϰāĻŽāĻžāϪ⧁ āχāϞ⧇āĻ•āĻŸā§āϰāύ āĻ¤ā§āϝāĻžāĻ— āĻ•āϰ⧇ Cu2+ āĻ†ā§Ÿāύ āĻ—āĻ āύ āĻ•āϰ⧇ āĨ¤ SO42- āωāĻ¤ā§āĻĒāĻ¨ā§āύ Cu2+ āĻāϰ āϏāĻ™ā§āϗ⧇ āĻŽāĻŋāϞāĻŋāϤ āĻšā§Ÿā§‡ CuSO4 āωāĻ¤ā§āĻĒāĻ¨ā§āύ āĻ•āϰ⧇ āĻāĻŦāĻ‚ āĻĻā§āϰāĻŦāϪ⧇ āĻĻā§āϰāĻŦā§€āĻ­ā§‚āϤ āĻšā§Ÿ, āĻ•āĻžāϰāĻŖ āχāϞ⧇āĻ•āĻŸā§āϰāύ (āĻ‹āĻŖāĻžāĻ¤ā§āĻŽāĻ• āφāϧāĻžāύ) SO42- āĻ†ā§Ÿāύ⧇āϰ āĻšā§‡ā§Ÿā§‡ āĻ•āĻĒāĻžāϰ āĻĒāϰāĻŽāĻžāϪ⧁ āĻĨ⧇āϕ⧇ āĻ…āϧāĻŋāĻ•āϤāϰ āϏāĻšāĻœā§‡ āĻŽā§āĻ•ā§āϤ āĻšā§Ÿ āĨ¤ āĻāχ āĻĒāĻĻā§āϧāϤāĻŋāϤ⧇ āĻ•āĻĒāĻžāϰ āĻ•ā§āϝāĻžāĻĨā§‹āĻĄā§‡ āϧāĻžāϤāĻŦ āĻ•āĻĒāĻžāϰ āϏāĻžā§āϚāĻŋāϤ āĻšā§Ÿ āĻāĻŦāĻ‚ āĻ•āĻĒāĻžāϰ āĻ…ā§āϝāĻžāύ⧋āĻĄ CuSO4 āĻšāĻŋāϏāĻžāĻŦ⧇ āĻĻā§āϰāĻŦāϪ⧇ āĻĻā§āϰāĻŦā§€āĻ­ā§‚āϤ āĻšā§Ÿā§‡ āϕ⧋āĻļ⧇āϰ āĻĻā§āϰāĻŦāϪ⧇āϰ āϘāύāĻ¤ā§āĻŦ āĻ¸ā§āĻĨāĻŋāϰ āϰāĻžāϖ⧇ āĨ¤

      āĻŦāĻŋāĻ•ā§āϰāĻŋ⧟āĻž: CuSO4⇌Cu2++SO2−4
      āĻ•ā§āϝāĻžāĻĨā§‹āĻĄā§‡: Cu2++2e⇌Cu↓

      āĻ…ā§āϝāĻžāύ⧋āĻĄā§‡: Cu−2e⇌Cu2+;Cu2++SO2−4⇌CuSO4
      āĻāχ āĻĒā§āϰāĻ•ā§āϰāĻŋ⧟āĻž āϚāϞāϤ⧇ āĻĨāĻžāĻ•āĻŦ⧇ āϝāϤāĻ•ā§āώāĻŖ āĻĒāĻ°ā§āϝāĻ¨ā§āϤ āύāĻž āĻ…ā§āϝāĻžāύ⧋āĻĄā§‡āϰ āĻ“ āĻĻā§āϰāĻŦāϪ⧇āϰ āĻ•āĻĒāĻžāϰ āύāĻŋāσāĻļ⧇āώāĻŋāϤ āĻšā§Ÿ āĨ¤ āĻ…āĻŦāĻļ⧇āώāϰ⧂āĻĒ⧇ āϕ⧋āĻļ⧇ H+ āĻ†ā§Ÿāύ āĻ“ SO42- āĻ†ā§Ÿāύ āĻ…āĻ°ā§āĻĨāĻžā§Ž, āϏāĻžāϞāĻĢāĻŋāωāϰāĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ āĻĨāĻžāϕ⧇ āĨ¤

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    3. Aditya Mondal
      2020-09-15T15:37:51+05:30Added an answer on September 15, 2020 at 3:37 pm

      āĻ•āĻĒāĻžāϰ⧇āϰ āϤāĻĄāĻŧāĻŋā§Ž āĻŦāĻŋāĻļ⧇āĻžāϧāύ⧇ āĻ•āĻĒāĻžāϰ āϏāĻžāϞāĻĢ⧇āϟ āĻāϰ āĻĻā§āϰāĻŦāϪ⧇ āĻ—āĻžāĻĸāĻŧ āϏāĻžāϞāĻĢāĻŋāωāϰāĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ āĻŽā§‡āĻļāĻžāύ⧇āĻž āĻšāϝāĻŧāĨ¤

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