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Question: 
 By losing one or two electrons the atoms of metal are

1.oxidised

2.reduced

3.hydrogenated

4.sublimated

Posted Date:-2021-03-07 08:28:57

Question: 
 The list which contains only elements is

1.air, water, oxygen

2.hydrogen, oxygen, brass

3.air, water, fire, earth

4.calcium, sulphur, carbon

Posted Date:-2021-03-07 08:28:57

Question: 
 The smallest part of an element that cannot exist as a free state is

1.ion

2.charge

3.atom

4.molecule

Posted Date:-2021-03-07 08:28:57

Question: 
 Which of the following is very high for proton?

1.radius

2.ionization potential

3.charge

4.hydration energy

Posted Date:-2021-03-07 08:28:57

Question: 
A reactant containing the element that is oxidised is called

1.reducing agent

2.oxidising agent

3.hydrogen

4.sublime

Posted Date:-2021-03-07 08:28:57

Question: 
Electrolytes conduct electricity in

1.solid state

2.liquid state

3.gaseous state

4.plasma state

Posted Date:-2021-03-07 08:28:57

Question: 
 Electrolysis of brine produces

1.chlorine gas

2.hydrogen gas

3.sodium hydroxide

4.all the above

Posted Date:-2021-03-07 08:28:57

Question: 
Loss of hydrogen atoms by an element is called

1.hydrogenation

2.oxidation

3.reduction

4.sublimation

Posted Date:-2021-03-07 08:28:57

Question: 
O-O-H bond angle in H2O2 is

1.97°

2.106°

3.120°

4.109°28′

Posted Date:-2021-03-07 08:28:57

Question: 
The electrolyte among the following is

1.NaOH

2.Urea

3.glucose

4.benzene

Posted Date:-2021-03-07 08:28:57

Posted on by R4R Team

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