CBSE Class 8 - Science - Chapter 13 - Chemical Effect of Electric Current (Worksheet)(#cbsenotes)(#eduvictors)

Class 8 - Science 

Chapter 13 - Chemical Effect of Electric Current 

(Worksheet)

Fill in the blanks

1. Static electricity was first observed by _________, a Greek scientist, more than 2500 years ago.


2.  is the process in which an electric current is passed through a liquid, causing a chemical reaction to take place.


3. Most liquids that conduct electricity are solutions of _______, _______ and ______________.


4. When electricity is passed through tap water, the gases ________ and ______are evolved.

CBSE Class 10 - Science Pre-Board Sample Question Paper (2018-19)(#eduvictors)(#cbsenotes)

CBSE Class 10 - Science
 Pre-Board Sample Question Paper (2018-19)

Getting good marks is very important for students of class 10. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Science subject to assess your knowledge about the subject.

CBSE Class 12 - Biology Sample Question Paper + Solution- (2018-19)(#cbsenotes)(#eduvictors)

CBSE Class 12 - Biology
 Sample Question Paper + Solution- (2018-19)

Biology is the study of life. All living things share five basic properties, passed down over millions of years from the first organisms to evolve on earth: cellular organization, metabolism, homeostasis, growth and reproduction, and heredity. Life’s organisms interact with each other at many levels, in ways simple and complex. Thus they show hierarchical organization. A variety of processes can produce evolutionary change. Most evolutionary biologists, however, agree with Darwin’s thinking that natural selection is the primary process responsible for evolution. Many such topics are covered in class 12 biology. 

Here follows the class 12  Biology sample question paper along with the marking scheme and answers for your assessment.

CBSE Class 12 - Chemistry Chapter 3 - Electrochemistry - Very Short Questions and Answers (#cbsenotes)(#eduvictors)

Electrochemistry 

Short Questions and Answers 

Q1: Define electrochemistry.

Answer: Electrochemistry is the study of the production of electricity from the energy released during a spontaneous chemical reaction and the use of electrical energy to bring about non-spontaneous chemical transformations.


Q2: What is the effect of temperature on molar conductivity?

Answer: Molar conductivity of an electrolyte increases with increase in temperature.


Q3: Why is it not possible to measure single electrode potential?

Answer: Because the half-cell containing single electrode cannot exist independently, as the charge cannot ow on its own in a single electrode.


Q4: Name the types of cells.

Answer:
1. Electrochemical cell (Galvanic or Voltaic cell)
2. Electrolytic cell

CBSE Class 10 - Mathematics Periodic Test 3 Sample Question Paper (2018-19)(#cbsepapers)

CBSE Class 10 - Mathematics
 Periodic Test 3 Sample Question Paper
(2018-19)

Class 10 Mathematics covers various basics concepts of number systems, algebra, statistics, probability, geometry, trigonometry etc., thus laying logical foundations of the subject.  Here follows the class 10  Maths (Periodic Test) sample question paper for practice.

CBSE Class 7 - Science - Chapter 8 - Winds, Storms and Cyclones (Worksheet)(#eduvictors)(#cbsenotes)

Class 7 - Science 

Chapter 8 - Winds, Storms and Cyclones

Worksheet

Fill the missing word in the blank spaces in the following statements:

1. Wind is _________ air.

2. Winds are generated due to ________ heating on the earth.

3. Near the earth’s surface __________air rises up whereas ___________ air comes down.

4. Air moves from a region of _________ pressure to a region of ___________ pressure.

CBSE Class 12 - Economics Sample Question Paper + Solution- (2018-19)(#cbsepapers)(#eduvictors)

CBSE Class 12 - Economics
 Sample Question Paper + Solution- (2018-19)

Economics is a social science concerned with analysis of Human behaviour in respect of scarcity of means. The most important difference between economics and other sciences, however, is that the systems it examines are fluid. Economic systems are the ways in which people organize economic life to deal with the basic economic problem of scarcity.

Here follows the class 12  Economics sample question paper along with marking scheme and answers help you in studies.