Some precious stones such as ruby and sapphire consist of...
Some precious stones such as ruby and sapphire consist of aluminum oxide coloured by traces of the oxides of
group lV elements
group l metals
transition metals
alkaline earths
the halogens
Correct answer is C
No explanation has been provided for this answer.
What amount of hydrogen will be required for complete hydrogenation of one mole of pent-3-yne? ...
The reaction between hydrogen and iodine may be represented by the equation H2(g)+ I2(g) → 2HI(...
zn + 2HCl → ZnCl2 + H2 The rate of the above reaction will be greatly increased if...
A binary compound of oxygen with another element is referred to as? ...
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Which of the following properties is characteristic of the halogens? ...
30cm3 of oxygen at 10 atmospheres pressure is placed in a 20 cm3 container. Calculate the ...
A mixture of 0.20 mole of Ar, 0.20 mole of N2 and 0.30 mole of He exerts a total pressure of 2....