What is the chemical formula of water?
पानी का रासायनिक सूत्र क्या है?
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Which gas do plants release during photosynthesis?
प्रकाश संश्लेषण के दौरान पौधे कौन-सी गैस छोड़ते हैं?
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What is the chemical formula of water?
जल का रासायनिक सूत्र क्या है?
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A solution with pH less than 7 is what type of solution?
pH मान 7 से कम होने पर विलयन कैसा होता है?
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A base turns red litmus paper into which colour?
क्षार लाल लिटमस पत्र को किस रंग में बदल देता है?
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What is the chemical name of baking soda?
बेकिंग सोडा का रासायनिक नाम क्या है?
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What is the chemical formula of common salt?
सामान्य नमक का रासायनिक सूत्र क्या है?
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What is mainly required for rusting of iron?
लोहे में जंग लगने के लिए मुख्य रूप से क्या आवश्यक है?
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Which of these metals is the best conductor of electricity?
इनमें से सबसे अच्छा विद्युत चालक धातु कौन-सी है?
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Why is sodium kept in kerosene oil?
सोडियम को मिट्टी के तेल में क्यों रखा जाता है?
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