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1. दिलेल्या विधानांतील रिकाम्या जागी कंसातील योग्य पर्याय निवडून विधाने सकारण स्पष्ट करा. (ऑक्सिडीकरण, विघटन, विस्थापन, विद्युत अपघटन, क्षपण, जस्त, तांबे, दुहेरी विस्थापन) अ. लोखंडाचे पत्रे गंजू नयेत म्हणून त्यांच्यावर…
1. स्तंभ क्र. 1 शी जुळेल या प्रकारे स्तंभ क्र. 2 व 3 ची फेरमांडणी करा. 2. योग्य पर्याय निवडून विधान पूर्णलिहा. अ. अल्क धातूंच्या बाह्यतम कवचातील इलेक्ट्रॉनांची संख्या ............…
विज्ञान धडा 1 गुरुत्वाकर्षण प्रश्न 1 विज्ञान धडा 1 गुरुत्वाकर्षण प्रश्न 2. पुढील प्रश्नांची उत्तरे द्या. (अ ) वजन व वस्तुमान यातील फरक काय आहेय? एखादे वस्तुचे पृथ्वीवरील वस्तुमान व…
Question 1. Fill in the blanks and explain the statements with reasoning: a. If the height of the orbit of a satellite from the earth’s surface is increased, the tangential…
Question 1. Match the pairs. Answer Question 2.Draw an electron dot structure of the following molecules. (Without showing the circles) (a)Methane (b)Ethene (c ) Methanol (d) Water Question 3. Draw…
Question 1.a. Alloy of sodium with mercury.Answer: The alloy of sodium with mercury is Silver amalgam. b. Molecular formula of common ore of aluminum.Answer: Molecular formula of common ore of…
Question 1. Match the columns in the following table and explain them: 1. Farsightedness, also known as hypermetropia, is a vision condition where distant objects are seen clearly, but nearby…
Question1.Fill in the blanks and explain the completed statements:a. Refractive index depends on the…………. of light.Answer: Refractive index depends on the velocity of light.It is an experimental fact. (This is an established…
Question 1.Fill in the blanks and rewrite the sentences:a. The amount of water vapour in air is determined in terms of its………..Answer: The amount of water vapour in air is…
Exercise Question 1. Tell the odd one out. Give a proper explanation.a. Fuse wire, bud conductor, rubber gloves, generator. Answer. The generator changes mechanical energy into electrical energy, while the…