BASIC Quiz

The energy of molecule A is -20 kcal/ mol and molecule B is -30 kcal/mol. We can conclude that:

• A is more stable

• B is more stable

• both are equally stable

• None of the above

Out of CO₂, SO₂, and H₂O, which one is planer and which one is nonplanar

• All are planer

• Both CO2 and SO2 is planar and H2O is non-planar

• Only CO2 is planer and SO2, H2O is non-planar

• All are nonplanar

Which of the following is not an operating system

• Python

• Windows

• Mac Os

• Ubuntu

Bond lengths have traditionally been expressed in ………

• milimeter

• angstrom/picometer

• kilometer

• meter

Identify the following element:
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• nickel
• copper
• zinc
• gallium

Identify the element whose electron configurations is [He]2s²2p⁴

• Carbon

• Nitrogen

• Oxygen

• Sulfur

I am an element in the 3rd row of the periodic table...I have one unpaired electron in my last sublevel...I have 3 valence electrons...who am I?

• Na
• Al
• Cl
• Ar

Which orbitals cannot exist

• 3p

• 4d

• 3f

• 6s

What type of bond is formed when atoms share electrons?

• Covalent

• Ionic

• Hydrogen

• Polyatomic

A substance with a pH of 8 is a

• acid

• base

• neutral