Discussion
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- Question
SO2 Polar or Nonpolar?
- Correct Answer
- SO2 has a net dipole moment and has a bent shape in its structure as water molecule Hence it is a polar molecule
- 1. Covalent bonds are formed when electrons are
Options- A. Transfer of electrons
- B. Sharing of electrons
- C. Dividing of electrons
- D. All of the above Discuss
- 2. Which of the following is not a property of water?
Options- A. Low density
- B. Low specific heat
- C. Low heat of vaporisation
- D. All of the above Discuss
- 3. Which statement about subatomic particles is not true?
Options- A. Protons and neutrons have the same charge
- B. Protons and electrons have the opposite charhes
- C. Protons and neutrons have almost the same mass
- D. All of the above Discuss
- 4. Systematic name for (CuI)s ?
Options- A. Copper Iodide
- B. Cobalt Fluoride
- C. Ferrous Oxide
- D. All of the above Discuss
- 5. Ketchup stored in a tin can may lead to chemical contamination.
Options- A. TRUE
- B. FALSE Discuss
- 6. Bleaching powder is used in drinking water as
Options- A. Disinfectant
- B. Antibiotic
- C. Coagulant
- D. Antiseptic Discuss
- 7. What happens to electrons in an ionic bond?
Options- A. collision of electrons
- B. Sharing of electrons
- C. Both A & B
- D. Transfer of electrons Discuss
- 8. An ionic bond is formed when
Options- A. sharing of electrons
- B. transfer of electrons
- C. Both A & B
- D. losing of protons Discuss
- 9. Which of the following reactions are exothermic? 1) C + O2 ? CO22) 2Mg + O2 ? 2MgO3) CuSO4 + 5H2O ? CuSO4.5H2O4) All the above
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 10. Is SiCl4 polar or nonpolar?
Options- A. Polar
- B. non polar
- C. Both A & B
- D. None of the above Discuss
Chemistry problems
Search Results
Correct Answer: Sharing of electrons
Explanation:
Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.
Examples of compounds with covalent bonds ::
HCl, CO2, O2,...
Correct Answer: All of the above
Explanation:
Water can moderate temperature because of the two properties: high-specific heat and the high heat of vaporization.
Hence, all the above given options are not the properties of water.
Correct Answer: Protons and neutrons have the same charge
Correct Answer: Copper Iodide
Explanation:
Copper Iodide is the systematic name of the given compound (CuI)s.
Correct Answer: TRUE
Explanation:
The given statement is True.
Ketchup is acidic, having a pH of 3.9. The acidic component, acetic acid, will react with the metal tin. This reaction will result in a metal acetate that will contaminate the ketchup.
Hence, The acetic acid in the ketchup will react with the metal tin, forming a metal acetate that will pass into the ketchup which leads to its contamination.
Correct Answer: Disinfectant
Correct Answer: Transfer of electrons
Explanation:
An ionic bond is formed between two molecules when transfer of valency electrons take place between them.
Correct Answer: transfer of electrons
Correct Answer: 4
Explanation:
Here all the given options are Exothermic reactions. Exothermic reactions are those reactions which involves the release of heat.
Generally all the combining reactions are exothermic in nature.
Correct Answer: non polar
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