Which of the following molecules is not linear in shape?
CO2
O 2
NH3
HCI
Correct answer is C
No explanation has been provided for this answer.
In bonded atoms, increase in electronegativity difference,
increases polarity
decreases polarity
has no effect on polarity
brings the polarity to zero
Correct answer is A
No explanation has been provided for this answer.
Which of the following arrangements is in order of increasing ionization energy?
AI, Si, P, S
Si, AI,S,P
S,P,Si,AI
P, Si,S,AI
Correct answer is A
No explanation has been provided for this answer.
Which of the following properties of covalent compounds is not correct? They
are non-electrolytes
are mostly gaseous and volatile liquids
have low melting point
have high boiling points
Correct answer is D
No explanation has been provided for this answer.
Which of the statements about the behaviour of the atom is correct?
atomic size decreases down the group
atomic size increases across the period
anions are smaller than the parent atom
cations are smaller than the parent atom
Correct answer is D
No explanation has been provided for this answer.