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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write scientific reason. Always paint grills of doors and windows before using them. - Science and Technology 1

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प्रश्न

Write scientific reason.

Always paint grills of doors and windows before using them.

स्पष्ट करा
टीपा लिहा

उत्तर

  1. Grills of doors and windows are generally made up of iron metal.
  2. Before painting, iron metal is in direct contact with the moisture in the atmosphere.
  3. Moist air attacks the surface of iron metal and causes rusting (i.e., corrosion of iron).
  4. Contact between iron and moist air can be avoided by applying paint on grills of doors and windows. This prevents rusting and protects them from damage.
    Hence, grills of doors and windows are always painted before they are used.
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पाठ 3: Chemical reactions and equations - Write scientific reasons

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एससीईआरटी महाराष्ट्र Science and Technology 1 [English] 10 Standard SSC
पाठ 3 Chemical reactions and equations
Write scientific reasons | Q 1
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