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- Question
Which of the following gases is present under pressure in soft drinks?
Options- A. Nitrous oxide
- B. Oxygen
- C. Nitrogen
- D. Carbon dioxide
- Correct Answer
- Carbon dioxide
ExplanationCarbon dioxide is present under pressure in soft drinks.
- 1. Gammaxene, D.D.T. & Bleaching powder are important compounds of
Options- A. Nitrogen
- B. Phosphorus
- C. Chlorine
- D. Sulphur Discuss
- 2. ATP generally energizes a cellular process by
Options- A. direct chemical transfer of a phosphate group
- B. becoming oxidized
- C. releasing heat upon hydrolysis
- D. direct chemical transfer of a sugar group Discuss
- 3. Which gas is a source of natural groundwater pollution?
Options- A. Helium
- B. Krypton
- C. Radon
- D. Argon Discuss
- 4. The water molecule has a dipole with the negative portion
Options- A. localized on one of the hydrogens
- B. localized between the hydrogen atoms
- C. pointing toward the oxygen atom
- D. pointing from the oxygen through the hydrogen atoms Discuss
- 5. what is the chemical name of the compound Cu2CO3
Options- A. copper (ii) carbonate
- B. copper (iii) carbonate
- C. copper (i) carbonate
- D. copper carbonate Discuss
- 6. Which type of bond is found in sodium bromide?
Options- A. Ionic
- B. Covalent
- C. Polar covalent
- D. None of the above Discuss
- 7. An atom that loses or gains electrons is called
Options- A. Proton
- B. Ion
- C. Isotope
- D. Neutron Discuss
- 8. An acid can be defined as Discuss
- 9. Curdling of milk is an example of
Options- A. Inversion
- B. Denaturation
- C. Hydrolysis
- D. Coagulation Discuss
- 10. 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 Discuss
Chemistry problems
Search Results
Correct Answer: Chlorine
Explanation:
Gammaxene, D.D.T. & Bleaching powder are important compounds of Chlorine.
Correct Answer: direct chemical transfer of a phosphate group
Explanation:
ATP generally energizes a cellular process by direct chemical transfer of a phosphate group.
Correct Answer: Radon
Explanation:
Radon gas is a source of natural groundwater pollution.
Correct Answer: pointing toward the oxygen atom
Explanation:
The water molecule has a dipole with the negative portion pointing toward the oxygen atom.
Correct Answer: copper (i) carbonate
Explanation:
The chemical name of the compound
Copper (i) carbonate and is also called as cuprous carbonate.
Correct Answer: Ionic
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.
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
Correct Answer: Coagulation
Explanation:
Coagulation :: The action or process of a liquid, especially blood, changing to a solid or semi-solid state.
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.
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