Mock Test

Exam: RRB Group D Subject: General Science Topic: Chemistry

Total Questions: 20

Q1. What is the term for a solution of accurately known concentration used in titrations?

Indicator solution Sample solution Standard solution Blank solution
Q2. Which of the following is an example of an amphoteric substance?

Sodium chloride Sulfuric acid Aluminum hydroxide Hydrochloric acid
Q3. A drug that is derived from a natural source is known as a:

Synthetic drug Semisynthetic drug Natural product Biotechnology drug
Q4. What is the process where a gas changes directly into a solid?

Sublimation Deposition Condensation Evaporation
Q5. What gives fruits their sweet taste?

Starch Protein Fructose Cellulose
Q6. The counter ion in the compound [Co(NH3)6]Cl3 is:

Co NH3 Cl Cl3
Q7. The surface tension of a liquid is a consequence of:

The repulsive forces between molecules in the bulk liquid. The net inward pull experienced by surface molecules due to stronger intermolecular forces. The kinetic energy of molecules causing them to escape the surface. The adherence of liquid molecules to the container walls.
Q8. What is the main characteristic of a metallic bond?

Sharing of electrons between atoms Transfer of electrons from one atom to another Electrostatic attraction between cations and anions Attraction between a hydrogen atom and a more electronegative atom
Q9. Which phenomenon explains why a wet patch on the ground dries up?

Condensation Evaporation Precipitation Sublimation
Q10. What is the primary health concern with exposure to strong acids like sulfuric acid?

Causing mild irritation Being odorless and tasteless Causing severe burns and tissue damage Leading to rapid dehydration
Q11. The van der Waals equation for a non-ideal gas is given by (P + a/V_m^2)(V_m - b) = RT, where V_m is molar volume. The term 'a' accounts for:

The volume excluded by the gas molecules themselves. The cohesive forces between gas molecules. The repulsive forces between gas molecules. The kinetic energy of gas molecules.
Q12. The concept of 'drug tolerance' refers to:

The time it takes for a drug to reach its peak effect The reduced response to a drug after repeated administration The potential for a drug to cause dependence The maximum dose of a drug that can be safely administered
Q13. Which of the following factors influences the magnitude of $$ \Delta_{o} $$?

Nature of the metal ion Oxidation state of the metal ion Nature of the ligand All of the above
Q14. Which of the following is a common method for separating solids from liquids?

Evaporation Adsorption Filtration Absorption
Q15. pH is a scale used to measure:

The concentration of oxygen The acidity or alkalinity of a solution The density of a liquid The temperature of a substance
Q16. Sulfuric acid is industrially produced primarily by which process?

Contact Process Leblanc Process Solvay Process Ostwald Process
Q17. If the temperature of a gas is doubled at constant volume and number of moles, the average kinetic energy of the molecules will:

Remain the same Be halved Be doubled Be quadrupled
Q18. Which component of a mass spectrometer is responsible for separating ions based on their mass-to-charge ratio?

Ionization source Mass analyzer Detector Vacuum system
Q19. In which state of matter do particles move the fastest?

Solid Liquid Gas Plasma
Q20. The boiling point of a substance is the temperature at which it changes from:

Solid to liquid Liquid to gas Gas to liquid Solid to gas

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