
रसायनिक अभिक्रिया
Authored by Nisha Chem
Chemistry
6th - 8th Grade
Used 1+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When an iron nail is dipped in copper sulfate solution , the blue color of copper sulfate is changed to green and deposition of copper on iron nail, identify which type of reaction is it
जब लोहे की कील को कॉपर सल्फेट के घोल में डुबोया जाता है, तो कॉपर सल्फेट का नीला रंग बदलकर हरा हो जाता है और लोहे की कील पर कॉपर का जमाव हो जाता है, पहचानें कि यह किस प्रकार की प्रतिक्रिया है
अपघटन
Decomposition
दोहरा विस्थापन
Double displacement
एकल विस्थापन
Single displacement
अम्ल क्षार प्क्रया या उदासीनीकरण प्क्रिया
Acid base reaction or Neutralization reaction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
आयरन और कॉपर सल्फेट के बीच विस्थापन प्रतिक्रिया एक रेडॉक्स प्रतिक्रिया है। कौन सा कथन होने वाली ऑक्सीकरण प्रतिक्रिया का सबसे अच्छा वर्णन करता है?
The displacement reaction between iron and copper sulfate is a redox reaction.
Which statement best describes the oxidation reaction that takes place?
प्रत्येक लौह आयन दो इलेक्ट्रॉन प्राप्त करता है।
Each iron ion gains two electrons.
प्रत्येक लौह आयन दो इलेक्ट्रॉन खोता है।
Each iron ion loses two electrons.
प्रत्येक लोहे का परमाणु दो इलेक्ट्रॉन प्राप्त करता है।
Each iron atom gains two electrons.
प्रत्येक लोहे का परमाणु दो इलेक्ट्रॉन खोता है।
Each iron atom loses two electrons.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
यह चित्र दर्शाता है कि जब किसी धातु को पानी में मिलाया जाता है तो क्या होता है। यह धातु कौन सी हो सकती है?
The diagram shows what happens when a metal is added to water. what could be this metal?
कैल्शियम
Calcium
सोडियम
Sodium
ताँबा
Copper
ज़िंक
Zinc
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
यह चित्र लोहे के कुछ उपयोग दर्शाता है। निम्नलिखित में से किसमें लोहे में जंग लगने की सबसे अधिक संभावना है?
THE DIAGRAM SHOWS SOME USES OF IRON.
IN WHICH OF THE FOLLOWING THE IRON IS MOST LIKELY RUST
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
W,X,Y और Z के बीच जंग लगने वाले बर्तन का बढ़ता क्रम लिखें।
Write increasing order of rusting prone vessel among W,X,Y and Z.
Z,Y,W,X
W,X,Y,Z
X,W,Z,Y
X,W,Y,Z
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
जंग लगना इसका उदाहरण है
Rusting is an example of
ऑक्सीकरण
Oxidation
अपचयन
Reduction
रिडॉक्स
Redox
सभी सही है
all of these
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
baking soda reacts with vinegar to form carbon dioxide, and sodium acetate. This type of reaction is
एकल विस्थापन
Single displacement
उदासीनीकरण
Neutralization
रिडॉक्स
Redox
इनमें से कोई नहीं
None of these
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