Saleha Pervez, Mansi Garg and, Poonam Singh Solutions for Chapter: Atomic Structure and Chemical Bonding, Exercise 1: Self Check

Consider the following statements

1. P-32 is used in blood cancer.

2. Fe-59 is used in detection of disorder in pancreatic gland.

3. Na-24 helps to locate the defect in blood circulations.

4. I -131 is used in detection and cure the disorder of thyroid.

Which of the statement(s) given above is/are incorrect?

Glycerol is viscous and has a high boiling point because:
$1.$ It has a low molecular mass.
$2.$ It forms intramolecular hydrogen bonding.
$3.$ It forms intermolecular hydrogen bonding.

Select the correct answer using the codes below.

An atom of sodium loses one electron and chlorine atom accepts one electron. This results in the formation of sodium chloride molecule. This type of molecule will be:

Which of the following statements regarding sub-atomic particles is incorrect?

All types of electromagnetic radiation have different wavelengths and frequencies but travel at the same speed. The frequency for different wavelengths are around:

1. $106 \mathrm{Hz}$ for radio-frequency

2. $1010 \mathrm{Hz}$ for microwave

3. $1013 \mathrm{Hz}$ for infrared

4. $1015 \mathrm{Hz}$ for visible light

Which of the above is used for radar?

Consider the following statements:
$1.$ An atom consists of a positively charged sphere and the electrons are embedded in it.
$2.$ The negative and positive charges are equal in magnitude. So, the atom as a whole is electrically neutral.

Which of the statements given above is/are correct about Thomson's model of an atom?

Which of the following statements with regard to isotopes and isobars is/are correct?
$1.$ Isotopes have the same mass number.
$2.$ Isobars have the same atomic number.

Select the correct answer using the codes given below.

Match the Column I with Column II and select the correct answer using the codes given below: