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Chemistry Quiz for Competitive Exams

Q1.What is the chemical name of table salt?
टेबल सॉल्ट का रासायनिक नाम क्या है?

Q2.Name the element which is used to make the coil of the heater?
उस तत्व का नाम बताइए जिसका उपयोग हीटर का तार बनाने में किया जाता है?

Q3.What is the charge of neutron?
न्यूट्रॉन का आवेश क्या है?

Q4.What is the full form of PH?
PH का पूर्ण रूप क्या है?

Q5.Atoms of different elements with the same number of neutrons are called?
समान संख्या में न्यूट्रॉन वाले विभिन्न तत्वों के परमाणुओं को कहा जाता है?

Q6.Radium is extracted from ______?
रेडियम ______ से निकाला जाता है?

Q7.What is the ratio of hydrogen and oxygen in water?
पानी में हाइड्रोजन और ऑक्सीजन का अनुपात क्या है?

Q8.Why white Phosphorus glows in dark?
सफेद फास्फोरस अंधेरे में क्यों चमकता है?

Q9.In arc welding, Argon is used because of its _________?
आर्क वेल्डिंग में, आर्गन का उपयोग _________ के कारण किया जाता है?

Q10.Which gas is produced in marshy places?
दलदली जगहों पर कौन सी गैस पैदा होती है?


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