Daily Practice Problems undefined Atomic Structure and Chemical Bonding

Question 1:

Which among the following is “Unique for atom of each element”?

(a) Mass number

(b) Weight number

(d) Sum of protons & neutrons [Level: Moderate]

Question 2:

In an atom, protons & neutrons are present in

(a) electron

(b) molecule

(d) nucleus [Level: Easy]

Question 3:

Write the electronic configuration of

(a) Sodium

(b) Calcium [Level: Moderate]

Question 4:

Which of the following atom lacks neutron?

(a)

(b)

(c)

(d) [Level: Difficult]

Question 5:

In a neutral atom

(a) no. of protons > no. of electrons

(b) no. of protons < no. of electrons

(d) no. of protons ≥ no. of electrons [Level: Easy]

Question 6:

In an atom, nucleus is

(a) neutral

(b) positively charged

(d) zero charge [Level: Moderate]

Question 7:

Maximum possible no. of electrons which can accommodate in a 7^th shell is

(a) 99

(b) 49

(d) 100 [Level: Easy]

Question 8:

Draw the atomic orbit structure for

(a) Carbon tetrachloride

(b) Ammonia [Level: Difficult]

Question 9:

Which type of covalent bond is present between N atoms in N₂ molecule?

(a) Single covalent bond

(b) Double covalent bond

(d) Polar covalent bond [Level: Moderate]

Question 10:

Which among the following is a covalent molecule but not covalent compound?

(a) H₂

(b) HCl

(d) NH₃ [Level: Moderate]

Question 11:

In formation of compound XY, an atom X gives two electrons to Y atom. What is the nature of bond in XY? [Level: Easy]

Question 12:

State octet rule. [Level: Easy]

Question 13:

An atom X has 2 electrons more than the noble gas configuration. What type of ion will it form?

(a) X^2-

(b) X²⁺

(d) X³⁺ [Level: Difficult]

Question 14:

No. of neutrons in are

(a) 9

(b) 11

(d) 10 [Level: Moderate]

Question 15:

Draw the Atomic orbit structure showing the formation of MgCl₂ [Level: Difficult]

Question 16:

Which among the following is not a set of isotopes?

(a) , ,

(b) , ,

(d) , [Level: Moderate]

Question 17:

Most of the mass of the atom is contributed by

(a) mass of nucleus

(b) mass of protons

(d) mass of electrons [Level: Moderate]

Question 18:

What is reason behind the chemical activity of an atom? Why atoms of inert gases are chemically inactive while those of other elements are chemically active? [Level: Moderate]

Question 19:

An element A has 1 electron in its 1^st shell which is its only shell. It combines with element B having 7 electrons in its 3^rd shell which is its last shell.

a) What type of bond is formed in AB?

b) Draw its atomic orbit structure. [Level: Difficult]

Question 20:

Complete the following table:

Species	Type of covalent bond (single, double or triple)	No. of single/double/triple covalent bonds
O₂
H₂O
Cl₂
CH₄

[Level: Moderate]

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All About Daily Practice Problems on ICSE 9 Chemistry Atomic Structure and Chemical Bonding NCERT Chapter 4

Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on ICSE 9 Chemistry Atomic Structure and Chemical Bonding NCERT Chapter 4 useful.

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