CBSE Class 8 - General Science - Half Yearly Examination Paper - (2017-18)

CBSE Class 8 - General Science - Half Yearly
Examination Paper - (2017-18)

CBSE Class 9 - Chemistry - Structure Of An Atom, Atoms & Molecules - Practice Test (#cbseNotes)

Chemistry - Structure Of An Atom, Atoms & Molecules - Practice Test

M.M = 40

Q1. What are the failures of Dalton Atomic theory? (3)


Q2. State the law of constant Proportion? verify it for the reaction of 2.047g H₂ and 16.166g O₂ giving 18.210g water.(3)


Q3. How many molecules of water are present in a drop of water which has a mass of 50g? (2)


Q4. Oxygen is (a) Monovalent (b) Bivalent (c) Trivalent (d) Tetravalent        (1)


Q5. Define the terms:
a) Atomic number
b) Mass number       (2)

CBSE Class 8 - English - Half Yearly Examination Paper - (2017-18) (#cbsePapers)

CBSE Class 8 - English - Half Yearly
Examination Paper - (2017-18)

CBSE Class 11 - Business Studies - Banks and Functions Of Commercial Banks (#cbseNotes)

Banks and Functions Of Commercial Banks

Banks
Banks occupy an important position in the modern business world. No country can make commercial and industrial progress without a well organised banking system. Banks encourage the habit of saving among the public. They mobilise
small savings and chennelise them into productive uses.


Q: How will you define bank?

Answer: A bank is an institution which deals in money and credit. It collects deposits from the public and supplies credit, thereby facilitating exchange. It also performs many other function like credit creation, agency functions, general services etc Hence a Bank is an organisation which accepts deposits, lends money and perform other agency functions.

CBSE Class 10 - English (C) - Literature Reader - A SHADY PLOT (Summary) (#cbseNotes)

A SHADY PLOT
(Chapter Summary)

① John Hallock, a ghost story  essayist, is given the undertaking of composing another of the same 'genre’' by Mr Jenkins, the main publisher of his stories.

② An arrogant and over-confident John begins considering the 'plot' of his new story yet shockingly he discovers thoughts and new ideas missing his creative energy, at this very crossroads he sees an irregular, spooky and ghostly 'she' figure in his room.

③ The phantom/ghost claims that she has been the purpose for him composing his spooky stories that effectively by giving him thoughts and plots.


④ She informs John that she has no further intention to help him as she, along with other members of Writer’s Inspiration Bureau, is going on strike to protest against the misuse of ‘Ghost Calling Board’, i.e., Ouija Board by human beings.

CBSE Class 12 - Informatics Practices - Java GUI Programming - Revision Tour-1 (Q and A) (#cbseNotes)

Java GUI Programming - Revision Tour-1
(Q & A)

Exercise Solutions of Sumita Arora Textbook


Q1: What is RAD?

Answer: Rapid Application Development (RAD) describes a method of developing software through the use of pre-programming tools or wizards. The pre-programmed tools or controls are simply dropped on a screen to visually design the interface of application.


Q2: What are RAD tools?

Answer: RAD tools are the tool that enables one to create applications in shorter time as compared to conventional language. Common examples of tools are:

NetBEans IDE: Provides RAD tools for Java GUI Application development
C++ Builder: RAD tool to develop Windows GUI applications in C++
Visual Basic: RAD tool to develop Windows based applications in BASIC language

CBSE Class 8 Science - Term 1 - Sample Question Paper (2017-18) (#cbsePapers)

SAMPLE PAPER OF SCIENCE FOR Term-1 (2017-18)       

CLASS-VIII

M.M-90                                                                                                              Time: 3 Hrs

General Instructions:
1. The question paper consists of 34 questions and is divided into four sections, A, B, C and D
2. All questions are compulsory.
3. Section A comprises question numbers 1 to 10. Each carries 1 mark
4. Section B comprises question numbers 11 to 20. Each carries 2 marks
5. Section C comprises question numbers 21 to 30. Each carries 3 marks.
6. Section D comprises question numbers 31 to 34. Each carries 5 marks.

SECTION-A  

Q1. Name the process of sowing seeds by scattering them in the field by hand.
Q2. Why are dried neem leaves put in the container in which food grains are stored?
Q3. What is the huge reserve stock of food grains held by government agencies called?
Q4. How is yeast a beneficial fungi?
Q5. Which antibiotic was discovered first and who discovered it?
Q6. Which phenomenon  disturbs the nitrogen cycle?
Q7. Are the handles and bristles of tooth brush made of same material?
Q8. Why are metals used to make bells and musical instruments?
Q9. How does pressure at a point within a liquid change with its depth?
Q10. Why  is a sharp knife more effective in cutting a fruit than a blunt life?

CBSE Class 8 - Science - Ch 18 Pollution Of Air and Water - Chapter Notes (#cbseNotes)

POLLUTION OF AIR AND WATER

(Chapter Notes)

Pollution is release of harmful substances in the environment thus causing threats to our ecosystem. Even non-harmful substances when precipitated in environment can be harmful. Land, water and air are the most important natural resources. Man made factors (agriculture, industrialization, transport etc.) are the primary reasons for the pollution.

According to World Health Organizations, five millions deaths occur in India due to pollution.

Pollution can be classified in many categories like:

• Land Pollution
• Air Pollution
• Water Pollution
• Noise Pollution
• Light Pollution

Here we discuss primarily about Air pollution and Water pollution.

Composition of Air

Air is a mixture of gases. 

By volume, Nitrogen:78%, Oxygen:21% and 1% (remaining gases like Carbon Di-oxide, Ozone, Argon, Methane etc.)

CBSE Class 6 -10 - English Grammar - Practice Jumbled Up Sentences (#cbseNotes)

 Practice Jumbled Up Sentences

Try online exercise

Jumbled Up Sentences or Rearrange words to form meaningful and grammatically correct sentence. These questions are pretty common in question papers.

You may try the following links to practice this exercise.

English Vocabulary - Single Word Substitutions (#cbseNotes)

English Vocabulary - Single Word Substitutions

1. Shy, timid, unwilling to face a situation

2. One who gives direction from behind the scene on a stage

3. One who gets pleasure in others trouble and pain