Chemical Bonding and Molecular Structure — Chemistry STD 11 Science — Question

Which element do you think would have been named by:
1. Lawrence Berkeley Laboratory
2. Seaborg's group?

Calculate the uncertainty in position of an electron if uncertainty in its velocity is 0.001%. Mass of electron = 9.1 × 10^-31kg, velocity of electron = 300ms^-1.
(h = 6.626 × 10^-34kg/ m²s^-1).

(a) In following pair of compounds which isomers exist :
(i) Butanoic acid and 2-Methylpropanoic acid
(ii) pent-1-yne and 3-methyl but-1-yne
(b) Draw the chain isomerism of following compounds :
(i) 2-Bromobutane
(ii) Pent-1-ene

Assign the position of the element having outer electronic configuration.
(n-1)d² ns² for n=4,

Why pH of our blood remains almost constant at 7.4 though we quite often eat spicy food?

Write formula for the following compound:

Iron(III) sulphate.