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Test: Chemical Bonding - SSC CGL MCQ


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15 Questions MCQ Test General Awareness for SSC CGL - Test: Chemical Bonding

Test: Chemical Bonding for SSC CGL 2024 is part of General Awareness for SSC CGL preparation. The Test: Chemical Bonding questions and answers have been prepared according to the SSC CGL exam syllabus.The Test: Chemical Bonding MCQs are made for SSC CGL 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Chemical Bonding below.
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Test: Chemical Bonding - Question 1

What is valency in chemistry primarily defined as?

Detailed Solution for Test: Chemical Bonding - Question 1

Valency in chemistry is defined as the capacity of an atom or element to form chemical bonds. It is crucial in determining how elements combine and interact with each other to achieve stability. Understanding the concept of valency helps in predicting the types of bonds elements will form and how they will behave in chemical reactions.

Test: Chemical Bonding - Question 2

Which type of ion has more electrons than its corresponding atom?

Detailed Solution for Test: Chemical Bonding - Question 2

An anion is an ion that carries a negative charge and has more electrons than its corresponding neutral atom. Anions form when atoms gain electrons to achieve a stable electron configuration. This extra electron(s) results in a negative charge, making the ion overall negatively charged.

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Test: Chemical Bonding - Question 3

How is the valency of a non-metal typically determined?

Detailed Solution for Test: Chemical Bonding - Question 3

The valency of a non-metal is usually determined by subtracting the number of valence electrons from eight. Since non-metals tend to gain electrons to achieve a full outer shell, this method helps in understanding how many electrons they need to gain to attain a stable electron configuration.

Test: Chemical Bonding - Question 4

What is the term for a positively charged ion?

Detailed Solution for Test: Chemical Bonding - Question 4

A positively charged ion is called a cation. Cations are formed when atoms lose electrons, resulting in a net positive charge. This loss of electrons allows the cation to achieve a more stable electron configuration, typically by forming bonds with negatively charged ions (anions) to balance out the charge.

Test: Chemical Bonding - Question 5

Which of the following elements has a valency equal to the number of valence electrons in the atom?

Detailed Solution for Test: Chemical Bonding - Question 5

For metals, the valency is equal to the number of valence electrons in the atom. This means that in the case of sodium (Na), its valency is 1, as it has one valence electron. Understanding the valency of metals is crucial in predicting how they will bond with other elements in chemical reactions.

Test: Chemical Bonding - Question 6

What type of chemical bond is formed by the sharing of electrons between two atoms?

Detailed Solution for Test: Chemical Bonding - Question 6

A covalent bond is formed by the sharing of electrons between two atoms. This type of bond occurs when atoms share electrons to achieve a more stable electron configuration. In covalent compounds, atoms are held together by these shared electrons. The strength of the bond depends on the number of shared electron pairs. Covalent compounds are typically liquids or gases with low melting and boiling points. They do not conduct electricity and are often insoluble in water but soluble in organic solvents.

Test: Chemical Bonding - Question 7

In an ionic bond, what is the typical electronegativity difference between the atoms involved?

Detailed Solution for Test: Chemical Bonding - Question 7

In an ionic bond, the typical electronegativity difference between the atoms involved is around 1.7. When this difference in electronegativity is significant, one atom will attract the shared electrons more strongly, leading to the transfer of electrons and the formation of an ionic bond. This results in the creation of ions, with one atom becoming positively charged (cation) and the other becoming negatively charged (anion).

Test: Chemical Bonding - Question 8

What kind of bond is formed by the one-sided sharing of one pair of electrons between two atoms?

Detailed Solution for Test: Chemical Bonding - Question 8

A coordinate or dative covalent bond is formed by the one-sided sharing of one pair of electrons between two atoms. In this type of bond, one atom provides both electrons in the shared pair. This bond is different from a typical covalent bond, where each atom contributes one electron. The atom donating the lone pair is called the donor, while the atom accepting the pair is called the acceptor.

Test: Chemical Bonding - Question 9

Which type of chemical bond results from a large difference in electronegativity between two atoms?

Detailed Solution for Test: Chemical Bonding - Question 9

An ionic bond results from a large difference in electronegativity between two atoms. In this type of bond, one atom strongly attracts the shared electrons, leading to the transfer of electrons from one atom to another. The resulting ions are held together by electrostatic forces of attraction, creating an ionic compound.

Test: Chemical Bonding - Question 10

What property distinguishes covalent compounds from ionic compounds?

Detailed Solution for Test: Chemical Bonding - Question 10

Covalent compounds are distinguished from ionic compounds by the sharing of electrons between atoms. In covalent bonds, atoms share electrons to achieve a stable electron configuration. This sharing results in the formation of molecules rather than ions. Covalent compounds typically have low melting and boiling points, do not conduct electricity, and are often insoluble in water but soluble in organic solvents.

Test: Chemical Bonding - Question 11

What type of bonding is characterized by the electrostatic attraction between a hydrogen atom and a highly electronegative atom in the same or different molecule?

Detailed Solution for Test: Chemical Bonding - Question 11

Hydrogen bonding is characterized by the electrostatic attraction between a hydrogen atom covalently bonded to a highly electronegative atom and another electronegative atom in the same or a different molecule. This type of bonding is significant in various biological processes and plays a crucial role in determining the properties of many substances.

Test: Chemical Bonding - Question 12

Which type of hydrogen bonding increases solubility in water and boiling point?

Detailed Solution for Test: Chemical Bonding - Question 12

Intermolecular hydrogen bonding, such as seen in compounds like HF and water, increases solubility in water and boiling point. This phenomenon is important in various chemical and biological systems, impacting properties like solubility and boiling points.

Test: Chemical Bonding - Question 13

What type of forces are weaker than normal chemical bonds and include dipole-dipole interactions, London dispersion forces, and Debye forces?

Detailed Solution for Test: Chemical Bonding - Question 13

Van der Waals' forces are weaker than normal chemical bonds and include various interactions like dipole-dipole interactions and London dispersion forces. These forces play a crucial role in determining the physical properties of substances and are particularly notable in molecular interactions.

Test: Chemical Bonding - Question 14

Compounds with which types of bonds exhibit unusual properties due to hydrogen bonding?

Detailed Solution for Test: Chemical Bonding - Question 14

Compounds with O-H, N-H, or H-F bonds exhibit unusual properties due to hydrogen bonding. This includes effects such as increased viscosity and boiling points, which are significant in various chemical and biological systems.

Test: Chemical Bonding - Question 15

What is the primary factor that contributes to the ability of geckos to climb sheer surfaces?

Detailed Solution for Test: Chemical Bonding - Question 15

The ability of geckos to climb sheer surfaces is primarily attributed to van der Waals' forces between their foot-pads and the surfaces. These forces enable the geckos to adhere to surfaces through intermolecular interactions, showcasing the importance of such forces in biological adaptations.

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