Final

Front

Which molecule has a trigonal planar shape?

Back

BF3 (Boron Trifluoride) has a trigonal planar shape due to the arrangement of its three fluorine atoms around the boron atom.

Front

In which orbital do transition metals have their outermost electrons?

Back

Transition metals have their outermost electrons in the D orbital.

Front

How many moles are in 50g of NaCl?

Back

There are 0.86 moles in 50g of NaCl.

Front

What is the electron configuration of a neutral atom of Sulfur (#16)?

Back

The electron configuration of a neutral atom of Sulfur is 1s² 2s² 2p⁶ 3s² 3p⁴.

Front

What is the shape of an 'S' orbital?

Back

The shape of an 'S' orbital is spherical.

Front

What is the molecular geometry of water (H2O)?

Back

The molecular geometry of water (H2O) is bent due to the two lone pairs of electrons on the oxygen atom.

Front

What is the principle behind the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

Front

What is the pH scale used for?

Back

The pH scale is used to measure the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic), with 7 being neutral.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.