Multiple Choice Question on Basic Concept of Science Class IX Standard Practice Test 1

By Global Rail Network on January 16, 2015

Last updated on January 20th, 2015 at 03:09 am

This is a mock drill question bank on Basic Concept of Science of Class IX standard for those appearing in different competitive examinations. The question bank consists of 24 questions with clock set for 20 minutes. After you finish the test, press Quiz Finish and you will get the answer sheet, your result and its comparison with others. You will also be given remarks containing the explanation about the answer and also about the distracters (other options) to build confidence on the subject. Always remember that the Mock Drill is to understand how your brain works in handling different pressure and the way distracters are constructed.

Sr No	Question	Answer	Remarks
2	The process of converting gas into solid state directly is called	sublimation	Change of state from solid to gas and back to solid is called sublimation. Fusion is from solid to liquid and liquid to solid is solidification. Liquid to gas to evaporation whereas gas to liquid to condensation.
3	The technique used for separating drug from blood is	Chromatography	Chromatography is a separation technique used to separate the different components in a liquid mixture. It was introduced by a Russian Scientist Michael Tswett. Chromatography involves the sample being dissolved in a particular solvent called mobile phase. The mobile phase may be a gas or liquid. The mobile phase is then passed through another phase called stationary phase. The stationary phase may be a solid packed in a glass plate or a piece of chromatography paper.
4	What is the molecular mass of nitric acid	63	Formula of Nitric Acid is HNO3 and molecular mass will be calculated as sum of atomic mass of the constituents as 1+14+3*16=63
5	Elements are defined as the number of	proton it possess
6	What is a tissue?	A groups of cells which is meant for a specific task is called tissue	Tissue and Division of Labour: In complex organisms, different tasks are carried out by different organs and organ systems. Tissues are the first step towards division of labour in complex organisms. A groups of cells which is meant for a specific task is called tissue.
7	The motion is said to be uniform when the acceleration is	zero	The acceleration has be zero means the speed not increasing and motion takes place at a uniform speed with any change in the speed. However, in actual practice some acceleration is required to compensate the retarding force arising out due to surface/air friction.
8	An artificial satellite is moving in a circular orbit of radius 42250 Km and takes 24 hours to complete one revolution. What will be its linear velocity?	3073 m/s	Linear velocity = 2πr/t = 222422501000/72460*60=3073 m/sec
9	The SI unit of large weight of a body is	Newton	Weight is the gravitational force acting on a body and is determined as m*g with unit as that of force i.e. Newton. SI unit of mass is Kg. The weight of a body remains constant throughout on earth as g is constant, meaning thereby that W is proportional to m and for this reason, weight is used commonly for mass.
10	The work done in lifting 1 Kg of mass for a distance of 1 m is equal to	9.81 Joules	The force acting on the body down ward is 1 Kgg=9.81 N and the work done is FS=9.81 N-m or Joule
11	The disease not caused by virus is	tuberculosis	The disease caused by virus is one in which the virus dies by itself and no medicine services the purpose.
12	Potassium permanganate when dissolved gives what color?	pink	The chemical formula is KMnO4 is having highly oxidising property and used wherever such property is to be used such as fruit preservation, water treatment, analytic purpose.
13	Matter exists in how many states?	5	Matter exits in five state namely solid, liquid, gas, plasma and Bose Einstein Condensate. In day to day affair, we observe only three states i.e. solid, liquid and gas
14	Percentage of oxygen in air is around	0.21	The composition of air is nitrogen = 78$, oxygen = 20.9%, argon = 0.8%
15	Avogadro number is a fixed number equal to 6.022*1023 defines the number of moles of what in 1 mole of any substance	all	The number of particles i.e. atom, molecules or ions present in 1 mole of any substance is fixed, with a value of 6.022*1023. This is an experimentally obtained value and called Avogadro Constant. The mass of 1 mole of a particular substance is always constant. It is equal to sum total of relative masses of atoms or molecules in grams.
16	Each living cell has got a certain specific components within it called	organelle
17	Plant tissues are of two types of which one is Meristematic and what is the second one?	Permanent Tissue	Plant tissues are of two main types, viz. meristematic tissue and permanent tissue. The distracters mentioned are types of meristematic type of tissue.
18	In a motion, the average velocity found to same as that of the average speed. The motion is said to be	a straight line	The straight line motion is having velocity and speed same. In circular motion, the direction vector is always changing. Here distractor of all in fourth option Is used to create confusion in the mind of candidate.
19	The tendency of the object to remain at rest or keep on moving with the same velocity is defined by	Inertia	Inertia is the mass of the object. For any motion we always take mass of the object and when under the influence of gravity, the force applied on the object is weight i.e. mg.
20	The value of gravitational acceleration at poles is	higher	Our actual earth has a polar radius of about 6.3568 x 106 m and slightly longer equatorial radius of about 6.3781 x 106 m. Using those values, it can be calculated that gravitational accelerations of about 9.87 m/s2 for the poles and about 9.80 m/s2 for the equator of our perfect spinning earth.
21	An object moving with a velocity of 5 m/sec possess an energy of 25 J. What will be its energy if the velocity is doubled?	100 J	1/2m25=25; m = 2 Kg, 1/22100=100 J
22	The disease not cased by bacteria is	Polio	The bacterial infection requires medication to kill the bacteria causing the disease for which anti-bacterial drugs are generally given
23	Diffusion is a process	intermixing of particle of different matters on their own
24	Why do inside of car glass gets mist while driving during rain?	it is the condensation of inside humid air on the glass whose temperature is low	During rains the relative humidity is very high. The respiration process of passenger produces water and increases the level of humidity inside the car. When car moves, due to wind flow over windscreen, the water droplets evaporate make glass colder on which the water vapours condensates.

There Are 3 Comments

pawan says:

August 16, 2015 at 5:31 pm

good

Reply
Harmanjot Kaur says:

April 30, 2018 at 11:25 pm

Very gud for students
I would like to refer it to others even
Very helpful
We come to know our mistakes and side by side v learn even

Reply

kapil says:

February 22, 2020 at 4:09 pm

hey

Reply

….let's share our railways knowledge

Multiple Choice Question on Basic Concept of Science Class IX Standard Practice Test 1

Quiz-summary

Information

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question

7. Question

8. Question

9. Question

10. Question

11. Question

12. Question

13. Question

14. Question

15. Question

16. Question

17. Question

18. Question

19. Question

20. Question

21. Question

22. Question

23. Question

24. Question

You may also like:

Post a Comment Cancel Comment

There Are 3 Comments

Search RailElectrica

Connect with us on Google

Recent Pages

Average score
Your score