SPSC SST Past Papers BPS 16 with Answers 2024

Halogens react with hydrogen gas to form?

1. Hydrogen halides
2. Hyaxl
3. Hydrochloric acid
4. None of the above

Complete transfer of one or more electrons from one atom to different atom forms?

1. Ionic bonds
2. Covalent bonds
3. Metallic bonding
4. Co-ordinate bonding

Pairs of outer shell electrons not used in bonding are called as?

1. Valence electrons
2. Loner electrons
3. Electrovalent electrons
4. Lone pairs

The pH of the buffer solution depends upon the concentration of?

1. Acid (H+-) only
2. Conjugate base (-OH-) only
3. Salt
4. Acid (H+-) and conjugate base (-OH-)

pH can be kept constant with the help of?

1. Saturated solution
2. Unsaturated solution
3. Buffer solution
4. Super saturated solution

When salt is added to the pure water, its boiling point?

1. Increases
2. Decreases
3. Remains same
4. None of the above

About how many elements in the Periodic Table are Metals?

1. 60%
2. 65%
3. 70%
4. 75%

Isotopes are atoms of the same element with different numbers of?

1. Electrons
2. Protons
3. Neutrons
4. Positron

What is true about Nylon?

1. It is an amide
2. It is a peptide
3. It is a polyamide
4. It is a polyester

The value of x 10^C1 x 6^C3 is?

1. 12760
2. 11760
3. 10760
4. 9760