Which of the following is a neutral oxide?
Nitrogen (IV0 oxide
Carbon (IV) oxide
Sulphur (IV) oxide
Phodphoorus (IV) oxide
Nitrogen oxide
Correct answer is E
No explanation has been provided for this answer.
Which of the following types of hybridization gives rise to tetrahedral molecules?
sp
sp2
sp3
sp3d
sp3d2
Correct answer is C
No explanation has been provided for this answer.
Which of the following is used as an anaesthetic?
CHI3
CHCI3
CH3OH
C2H5OH
CHBr3
Correct answer is B
No explanation has been provided for this answer.
Detergents are better than soaps for laundry because
detergents are synthetic while soaps are not
detergents are more soluble in water than soaps
scum is precipitated when soaps are used with hard water but not with stergents
soaps from soluble saits with ions causing hardness of water while detergents do not
soaps are in bars while detergents are in powder form
Correct answer is C
No explanation has been provided for this answer.
A salt which loses mass when exposed to air is
hygroscopic
deliquescent
efflorescent
fluorescent
effervescent
Correct answer is C
No explanation has been provided for this answer.