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Chemistry Quiz for Competitive Exams
Q1.In isotopes the number of neutrons is______?
समस्थानिकों में न्यूट्रॉन की संख्या ______ है?
Q2.How many maximum numbers of hydrogen bonds is an H2O molecule?
एक H2O अणु में हाइड्रोजन बांडों की अधिकतम संख्या कितनी है?
Q3.How Base converts litmus paper?
बेस लिटमस पेपर को कैसे परिवर्तित करता है?
Q4.How will you calculate the density of the gas?
आप गैस के घनत्व की गणना कैसे करेंगे?
Q5.Which acid is present in lemon?
नींबू में कौन सा अम्ल मौजूद होता है?
Q6.The term PVC stands for?
पीवीसी शब्द किसके लिए है?
Q7.Which chemical is used as a fixer in photography?
फोटोग्राफी में फिक्सर के रूप में किस रसायन का उपयोग किया जाता है?
Q8.A number of protons is equal to?
प्रोटॉन की संख्या के बराबर है?
Q9.Biogas consists of?
बायोगैस में शामिल हैं?
Q10.Name the metal that is used as a catalyst in the hydrogenation of oils?
तेलों के हाइड्रोजनीकरण में उत्प्रेरक के रूप में प्रयुक्त धातु का नाम बताइए?