MeroPaper

  • About Us
  • Contact Us

How mercury is extracted in pure form from its sulphide ore?

Extraction :  Mercury is extracted from cinnabar ore by carbon reduction process. This process consists of the following steps. Concentration of cinnabar ore by froth flotation process: Cinnabar is a sulphide ore and hence it is concentrated by froth flotation process. Roasting of the concentrates ore: The concentrated ore is roasted in air when it … Read moreHow mercury is extracted in pure form from its sulphide ore?

HSEB || Important Model Questions of Computer Science Class 12

Class: 12 || Subject: Computer Science || Unit-3: Communication and Networking Short Answer Questions Describe the Bus and Star topology with suitable diagram. [2.5+2.5=5] Differentiate between guided and unguided networking media. [5] Who is system analyst? Explain the roles of system analyst. [1+4=5] Explain Bus and Star topology with advantages and disadvantages. [2.5+2.5=5] Describe ‘simplex’, … Read moreHSEB || Important Model Questions of Computer Science Class 12

Important latest questions of Computer Science Class 12

computer science

Unit 1 System Development Concept Class: 12 | Subject: Computer Science Short Answer Questions. What are the major activities in SDLC with based on waterfall model? [5] Write the importance and necessity of SDLC. [5] Describe the components of feasibility study. [5] Who is system analyst? List out characteristics of system analyst. [1+4] Describe system flowchart with diagram. … Read moreImportant latest questions of Computer Science Class 12

Old model question for Computer Science Class 12 (XII) 2067 (2010)

Model Question 2067 Subject: Computer Science | F.M.: 75 |P.M.: 27 | Time: 3 hrs Candidates are required to give their own words as practicable. The figures in the margin indicate full marks. Group A Long Answer Questions Attempt any Four Questions. What is Entry-Relationship Data Model? Give an ER-diagram for a database showing fatherhood, … Read moreOld model question for Computer Science Class 12 (XII) 2067 (2010)