A gas is found to have the formula . Its vapour density is 70.The value of n must be
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Which of the following is the lightest metal?
Lithium is the lightest of all the metals due to its low atomic number among metals. It is the lightest solid element.
Properties ::
* It is a soft silvery-white alkali metal.
* Lithium is highly reactive and flammable and is stored in mineral oil.
Reactions that require CO2 take place in
Which of the statement(s) about the reaction given below is/are INCORRECT?
2PbO (s) + C (s) ⟶ 2Pb (s) + CO2 (g)
I. Lead is getting reduced.
II. Carbon is getting reduced.
III. Lead oxide is getting reduced.
Which is a pair of allotropes?
Allotropes are the different physical forms of an element. Here in the given options, diamond and graphite are the pair of allotropes of carbon.
Some more examples are Molecular oxygen and ozone are pair of allotropes, Black and red phosphorous are also pairs of allotropes.
Number of moles of solute present in 1 litre of solution is
Moles of solute present in 1 litre or 1000ml of solution is called molarity
All of the following are constituents of RNA molecule except _____
A particle which is four times in mass and two times in charge that of proton is
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. Its vapour density is 70.The value of n must be