Chemistry problems
- 1. Which of the following gases is present under pressure in soft drinks?
Options- A. Nitrous oxide
- B. Oxygen
- C. Nitrogen
- D. Carbon dioxide Also asked in: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO
Correct Answer: Carbon dioxide
Explanation:
Carbon dioxide is present under pressure in soft drinks.
- 2. Which type of bond is found in sodium bromide?
Options- A. Ionic
- B. Covalent
- C. Polar covalent
- D. None of the above Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: Ionic
- 3. An atom that loses or gains electrons is called
Options- A. Proton
- B. Ion
- C. Isotope
- D. Neutron Also asked in: AIEEE, Bank Exams, GATE, Analyst, Bank Clerk, Bank PO
Correct Answer: Ion
Explanation:
An atom that loses or gains electrons is called as ion. Gaining of electron is negative charge and is called as Anion and lossing of eectron is called Cation.
- 4. An acid can be defined as Also asked in: Analyst, Bank Clerk, Bank PO
Correct Answer: An acid can be defined as a molecule or other species which can donate a proton or accept an electron pair in reactions (OR) A substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind
- 5. Curdling of milk is an example of
Options- A. Inversion
- B. Denaturation
- C. Hydrolysis
- D. Coagulation Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Coagulation
Explanation:
Coagulation :: The action or process of a liquid, especially blood, changing to a solid or semi-solid state.
- 6. Strength of concrete increases with
Options- A. increase in fineness of cement
- B. decrease in size of aggregate
- C. increase in water cement ratio
- D. decrease in curing time Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: increase in water cement ratio
Explanation:
Strength of concrete increases with increase in water cement ratio as the strength of the cement is directly proportional to water cement ratio.
- 7. Which of the following can be used as lamp oil?
Options- A. Lipids
- B. Carbohydrates
- C. Proteins
- D. Nucleic acids Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Lipids
- 8. Stoichiometry is based on
Options- A. Law of conservation of energy
- B. Law of conservation of mass
- C. Newton's 1st law
- D. Kepler's law Also asked in: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO
Correct Answer: Law of conservation of mass
Explanation:
Stoichiometry is a branch of chemistry deals with the calculations on reactants and products. It is based on the Law of conservation of mass where total mass of reactants is equal to total mass of products.
- 9. Alcohol is a stimulant. true or false
Options- A. TRUE
- B. FALSE Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: FALSE
Explanation:
Alcohol is a drug.
- 10. Which compound is an electrolyte?
Options- A. HCl
- B. NaCl
- C. HBr
- D. All of the above Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: All of the above
Explanation:
A substance that dissociates into ions in solution and acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, and phosphate are examples of electrolytes, informally known as lytes.
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