Liquid A is known to have a lower surface tension and lower viscosity than Liquid B. Use these facts to predict the result of below experiment , if you can.
Experiment:
25.0 mL each of Liquid A and Liquid B are poured through a funnel, and the times tA and tB needed to pour each liquid through the funnel are measured.
Predicted outcome :
O tA will be greater than tB
O tA will be less than tB
O tA will be equal to tB
O Its impossible to predict whether tA or tB will be greater without more information.

Option (B) is the correct answer.

Explanation:

Surface tension is defined as the attractive forces experienced by the surface molecules of a liquid by the molecules present beneath the surface layer of the liquid.

And, viscosity is defined as the ability of a liquid to resist its flow. When a substance has high viscosity then it is known as a viscous substance.

Since, it is given that viscosity of liquid B is more than liquid A. Therefore, liquid B has more resistive force on its surface as compared to liquid A. As a result, time taken by liquid B is more than time taken by liquid A.

Also,    Surface tension =

Surface tension of liquid B is more than liquid A. Therefore, .

Thus, we can conclude that tA will be less than tB.

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.

the correct answer would be d. hope this !