Chemistry Quiz for Competitive Exams

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Chemistry Quiz for Competitive Exams


Q1.Component of which type of mixture is uniformly distributed throughout?
किस प्रकार के मिश्रण को समान रूप से वितरित किया जाता है?
a. Homogeneous mixture
b. Heterogeneous mixture
c. Both a&b
d. None of the above

Q2. A mixture of copper sulphate and potassium permanganate is an example of?
कॉपर सल्फेट और पोटेशियम परमैंगनेट का मिश्रण इसका एक उदाहरण है?
a. Homogeneous mixture
b. Heterogeneous mixture
c. Both a&b
d. None of the above

Q3.An alloy of which metal is used for making part of airplanes or rail?
हवाई जहाज या रेल का हिस्सा बनाने के लिए किस धातु का मिश्र धातु प्रयोग किया जाता है?
a. Lead
b. Silver
c. Iron
d. Aluminum

Q4.Name the metals which are used to make brass?
पीतल बनाने के लिए किस धातु का उपयोग किया जाता है?
a. Copper
b. zinc
c. Silver
d. Brass

Q5. In which principle The Separation through separating funnel is based?
किस सिद्धांत में पृथक्करण फ़नल के माध्यम से पृथक्करण आधारित है?
a. Principle of vaporiastion.
b. Principal of slight difference of boiling point of the components
c. Principal of large difference in boiling points of components.
d. It is based on the principle of difference in densities of two immiscible liquids.

Q6.Which separation method of the mixture is used for the formation of common salt (NaCl)?
सामान्य नमक (NaCl) के निर्माण के लिए मिश्रण की किस पृथक्करण विधि का उपयोग किया जाता है?
a. Distillation
b. Crystallization
c. Chromatography
d. Evaporation

Q7.What are the products of crude oil after the frictional distillation?
घर्षण आसवन के बाद कच्चे तेल के उत्पाद क्या हैं?
a. Diesel
b. Petrol, LPG, CNG,
c. CNG, Petroleum jelly, CNG
d. Kerosene, Diesel, Petrol, LPG, CNG, and Petroleum jelly.

Q8.Name the place where the first oil refinery of India?
भारत की पहली तेल रिफाइनरी उस जगह का नाम बताइए?
a. Baltana (Punjab)
b. Rudrapur (Uttarakhand)
c. Baddi (Himanchal)
d. Digboi (Assam)

Q9.Distillation method is used to separate_________ type of liquids ?
आसवन विधि का उपयोग तरल पदार्थो को अलग करने के लिए किया जाता है?
a. One miscible liquid
b. Two miscible liquids
c. Five miscible liquids
d. Four miscible liquids

Q10.What should be the difference in the boiling point of two miscible liquids in the fractional distillation process?
भिन्नात्मक आसवन प्रक्रिया में दो गलत तरल पदार्थों के क्वथनांक में क्या अंतर होना चाहिए?
a. Less than 25 kelvin
b. More than than 25 kelvin
c. 25 kelvin
d. 28 kelvin