The reactivity of fluorine is due to?
its high electro negativity
small size of fluorine atom
availability of D-orbitals
strong f-f bond
Correct answer is A
fluorine (F), most reactive chemical element and the lightest member of the halogen elements.
As the most electronegative element, it is extremely reactive.
Soaps clean surfaces on the principle based on?
viscosity
floatation
elasticity
surface tension
Correct answer is D
Since the surface tension forces become smaller as the distance between water molecules increases, the intervening soap molecules decrease the surface tension.
Cash can be drawn from the bank using
A bank teller
A credit card
A recharge card
ATM card
Correct answer is D
ATM is a machine that dispenses cash or performs other banking services when an account holder inserts a bank card. For one to withdraw money from the machine, you are required to own an ATM card
I only
I, II and IV
I and II only
I, II, III, and IV
Correct answer is D
- Calcium trioxocarbonate (IV) occurs abundantly in earth's crust as limestone, chalk and marble
- Eggshell is made almost entirely of calcium carbonate (CaCO3) crystals.
In a three-column cash book, dishonored cheques will be shown on the
Bank column (debit)
Bank column(credit)
Cash column(debit)
Cash column(credit)
Correct answer is B
Dishonoured cheques will be recorded on the credit side, write "By Debtor A/C" with respective amount in the bank column.