Chlorination of water for town supply is carried out to
Chlorination of water for town supply is carried out to A. make the water colourless B. remove germs…
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Which of the following is used to study the arrangement of particles in crystal lattices?
Which of the following is used to study the arrangement of particles in crystal lattices? A. Alpha-particles B.…
I. It has a varied composition from one place to another. ll. it constituents can…
I. It has a varied composition from one place to another. ll. it constituents can be separated by…
The electronic configuration of Mg 2+ is
The electronic configuration of Mg 2+ is A. ls 22s 22P 63s23P2 B. Is22s22P6 C. ls22s22p63s2 D. ls22s22P4…
Group VII elements are
Group VII elements are A. monoatmic B. good oxidizing agents C. highly electropositive D. electron donors Correct Answer:…
l . Evaporation. ll. Sublimation. lll. Diffusion. IV. Brownian motion. Which of the above can…
l . Evaporation. ll. Sublimation. lll. Diffusion. IV. Brownian motion. Which of the above can correctly be listed…
If the elements X and Y have atomic numbers 11 and 17 respectively, what type…
If the elements X and Y have atomic numbers 11 and 17 respectively, what type of bond can…
A hydrogen atom which has lost an electron contains
A hydrogen atom which has lost an electron contains A. one proton only B. one neutron only C.…
An increase in the pressure exerted on gas at a constant temperature results in
An increase in the pressure exerted on gas at a constant temperature results in A. a decrease in…
2H2(g) + O2(g) → 2H2 O(g) In the reaction above, what volume of hydrogen would…
2H2(g) + O2(g) → 2H2 O(g) In the reaction above, what volume of hydrogen would be left over…