Which of the following statements about the reaction below are INCORRECT?
2Pb + C → 2Pb + CO2
A. Carbon di-oxide is getting, oxidisedB. Lead is getting reducedC. Carbon is oxidisedD. Lead oxide is getting reduced
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Which group in the modern periodic table contains elements that are inert gases?
Which among the following statements are TRUE regarding synthetic fibre?
I. They melt after catching fire.
II. They are more durable.
III. They are prepared by a number of processes using petrochemicals.
The electronic dot and cross structure of ethene is ............
The process of transferring of charge from a charged object to the earth is called ______________.
What is the position of metallic ion and non-metallic ion in a chemical formula?
Isotopes have ______.
I. similar physical quantities and different chemical properties
II. different physical properties
III. similar chemical properties
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