Chemistry Quiz For SSC CGL Exam : 11th January 2020 for atom,Radioactivity

Q1. Which of the following is not a part of an atom?
(a) Electron
(b) Proton
(c) Neutron
(d) Photon

Q2. What is the mass number of an element, the atom of which contains two protons, two neutrons and two electrons?
(a) 2
(b) 4
(c) 6
(d) 8

Q3. Which is the most abundant element after Oxygen?
(a) Silicon
(b) Carbon
(c) Sodium
(d) Chlorine

Q4. Chemically “Plaster of Paris” is:
(a) Calcium Sulphate
(b) Calcium Carbonate
(c) Calcium Oxide
(d) Calcium Oxalate

Q5. Monazite is an ore of-
(a) Zirconium
(b) Thorium
(c) Titanium
(d) Iron

Q6. Radioactivity is measured by-
(a) Hydrometer
(b) Geiger Counter
(c) Seismometer
(d) Ammeter

Q7. Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I List-II
(Naturally occurring substance) (Element present)
A. Diamond      1. Calcium
B. Marble         2. Silicon
C. Sand            3. Aluminium
D. Ruby           4. Carbon

Code:  A    B   C   D
(a)       3    1   2   4
(b)       4    2   1   3
(c)       2    1   3   4
(d)       4    1   2   3

Q8. Which among the following metal is used for galvanization?
(a) Zinc
(b) Copper
(c) Iron
(d) Silver

Q9. PET is a very familiar form of _____________ It is used for making bottles.
(a) Nylon
(b) Acrylic
(c) Polyester
(d) Rayon

Q10. What is nature of pH of Milk?
(a) Slightly Acidic
(b) Slightly Basic
(c) Highly Acidic
(d) Highly Basic

Solultions:

S1. And.(d)
Sol. Proton, electron and neutron are part of an atom. These particles are also known as three fundamental particles, but the photon is associated with light energy and also known as energy packet of light.

S2. Ans.(b)
Sol. The mass number of an element is the sum of a total number of protons and neutrons inside in its nucleus and represents by A. Therefore, mass number A = number of proton+number of neutron. Therefore, mass number = 2 + 2 = 4

S3. Ans.(a)
Sol. The most abundant element on earth’s surface after Oxygen is Silicon. It was discovered by J.J. Berzelius in 1824. The word ‘Silicon’ was taken from the Latin word silex. Silicon chips are used as a semiconductor in computers.

S4. Ans.(a)
Sol. A group of gypsum cement, essentially hemi hydrated Calcium Sulphate (CaSO4. 1/2 H2O), a white powder that forms a paste when it is mixed with water and then hardens into a solid used in making a cast, mould and sculpture.

S5. Ans.(b)
Sol. Monazite is an important ore for Thorium, Lanthanum and Cerium. India, Madagascar and South Africa have large deposits of monazite sands.

S6. Ans.(b)
Sol. The Geiger-Muller Counter also called a Geiger Counter, is an instrument used for detection and measurement ionizing radiation.

S7. Ans.(d)
Sol. Diamond is an allotrope of Carbon . Marble is a metamorphic rock composed mainly of crystalline calcium Carbonate or Calcium Magnesium Carbonate. The most common component of sand is Silicon dioxide in the form of quartz. Ruby is considered as one of the four precious stones together with Sapphire, Emerald and Diamond. In Chemistry, the ruby gemstone is a mixture of Aluminium, Oxygen and Chromium.

S8.Ans.(a)
Sol. Galvanisation is the process of applying a protective zinc coating to iron or steel, to prevent rusting. The most common method is hot dip galvanizing, in which steel sections are submerged in a bath of molten zinc.

S9. Ans.(c)
Sol. The majority of the world’s PET(Polyethylene terephthalate)production is for synthetic fibres and bottle production. In the context of textile applications, PET is referred to by its common name, polyester, whereas the acronym PET is generally used in relation to packaging.

S10.Ans.(a)
Sol. Milk has a pH of around 6.5 to 6.7, which makes it slightly acidic.

 

Are You Preparing For SSC Exams? Register Here to get Free Study Material

Click here for best SSC CGL mock tests, video course, live batches, books or eBooks

Download Upcoming Government Exam Calendar 2021

×

Download success!

Thanks for downloading the guide. For similar guides, free study material, quizzes, videos and job alerts you can download the Adda247 app from play store.

Thank You, Your details have been submitted we will get back to you.

Leave a comment

Your email address will not be published. Required fields are marked *

Join India largest learning distination

What You Will get ?

  • Job Alerts
  • Daily Quizes
  • Subject-Wise Quizes
  • Current Affairs
  • previous year question papers
  • Doubt Solving session

Login

OR

Forgot Password?

Join India largest learning distination

What You Will get ?

  • Job Alerts
  • Daily Quizes
  • Subject-Wise Quizes
  • Current Affairs
  • previous year question papers
  • Doubt Solving session

Sign Up

OR
Join India largest learning distination

What You Will get ?

  • Job Alerts
  • Daily Quizes
  • Subject-Wise Quizes
  • Current Affairs
  • previous year question papers
  • Doubt Solving session

Forgot Password

Enter the email address associated with your account, and we'll email you an OTP to verify it's you.


Join India largest learning distination

What You Will get ?

  • Job Alerts
  • Daily Quizes
  • Subject-Wise Quizes
  • Current Affairs
  • previous year question papers
  • Doubt Solving session

Enter OTP

Please enter the OTP sent to
/6


Did not recive OTP?

Resend in 60s

Join India largest learning distination

What You Will get ?

  • Job Alerts
  • Daily Quizes
  • Subject-Wise Quizes
  • Current Affairs
  • previous year question papers
  • Doubt Solving session

Change Password



Join India largest learning distination

What You Will get ?

  • Job Alerts
  • Daily Quizes
  • Subject-Wise Quizes
  • Current Affairs
  • previous year question papers
  • Doubt Solving session

Almost there

Please enter your phone no. to proceed
+91

Join India largest learning distination

What You Will get ?

  • Job Alerts
  • Daily Quizes
  • Subject-Wise Quizes
  • Current Affairs
  • previous year question papers
  • Doubt Solving session

Enter OTP

Please enter the OTP sent to Edit Number


Did not recive OTP?

Resend 60

By skipping this step you will not recieve any free content avalaible on adda247, also you will miss onto notification and job alerts

Are you sure you want to skip this step?

By skipping this step you will not recieve any free content avalaible on adda247, also you will miss onto notification and job alerts

Are you sure you want to skip this step?