Question

SECTION-A
Q1. Stainless steel pans are usually provided with copper bottoms. What could be the
possible reason
स्टेनलेस स्टील पैन आमतौर पर तांबे की तली के साथ प्रदान किए जाते हैं। इसका संभावित कारण क्या हो सकता है?
Q2. What is the temperature range of scale in the laboratory thermometers?
प्रयोगशाला थर्मामीटर में पैमाने की तापमान सीमा क्या है?
Q3. Give one example of a chemical reaction showing the
characteristic in the diagram
आरेख में प्रदर्शित विशेषता दिखाने वाली रासायनिक प्रतिक्रिया का एक उदाहरण दें।​

Answer 1

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Answer 2

The correct answers to the given questions are as follows:-

Q1. Stainless steel pans are usually provided with copper bottoms. What could be the  possible reason?

: Copper is a better conductor of heat than stainless steel. That is why stainless steel pans are usually provided with copper bottoms to aid the cooking process.

Q2. What is the temperature range of scale in the laboratory thermometers?

: The temperature range of scale in the laboratory thermometer is -10˚C to 110˚C.

Q3. Give one example of a chemical reaction showing the  characteristic in the diagram.

: Since no diagram is provided, here is a basic chemical reaction example:-

formation of water (liquid) from two gases, hydrogen and oxygen.

(The equation is balanced)

2H2 (g)          +   02  (g)          = 2H20(l)

(hydrogen)     (oxygen)     (water)