CBSE Class 9 Chemistry Question Paper SA1 2011 (3)

Scroll down for PDF

CBSE Class 9 Computer Science Question Paper SA 1 2011. Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

CHEMISTRY

1.With which name is the phenomenon of changing of a liquid into its vapours at temperature below its boiling point known ?

2.In a high jump athletic event the athletes are made to fall on a cushioned bed. Why ?

3.Explain Tyndall effect. Which type of solutions show Tyndall effect ?

4.What determine the state of a substance ? Suggest a method to liquefy gases. Water droplets are observed on the outer surface of a glass tumbler containing ice cold water. Give reason.

5.State the separation technique you would apply for the separation of the following ?

6 (a) Sodium chloride from its solution in water (b) Tea leaves from tea (c) Iron pins from sand (d) Different pigments from an extract of leaves (e) Butter from curd (f) Fine mud particles suspended in water.

7.(a) A solution is prepared by dissolving 15g of sodium chloride in 200g of H2O. What is the mass by mass percent age of NaCl in this solution ? (b) What is solute and solvent in aerated drinks ? (c) Given a solution of substance ‘A’ how will you test whether it is saturated or unsaturated with respect to ‘A’ at the given temperature

OR

(a) How much water should be mixed with 12mL of alcohol so as to obtain 12% alcohol solution

? (b) How does the particle size vary in a true solution and a suspension ? (c) What is a dispersed phase and a dispersing medium in a colloid ?

Please click the link below to download pdf file of CBSE Class 9 Chemistry Question Paper SA1 2011 (3).

Tags: 


Click on the text For more study material for Chemistry please click here - Chemistry

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

CBSE Class 12th Board Exam 2020

CBSE Class 12th Board Exam 2020: Here are some exam preparation tips Every year the Central Board of Secondary Education (CBSE) conducts annual board exams for the students of 10th and 12th grade in February / March. Class 12th board exams play a very significant role...

CBSE schools to have sports period daily for classes 1 to 12

CBSE schools to have sports period daily for classes 1 to 12, new curriculum introduced All work and no play makes a child dull. Nowadays students have a very hectic schedule so that they cannot take out time to play games and gently start ignoring sports. Therefore,...

5 Signs Why Your Child Needs a Tutor

Is your child struggling at school? Are they leaving assignments incomplete? When it comes to education every student is different. Some children do well with the help of the teacher at school and an active parent while others need extra help. When children have...

CBSE Board Exams Changes to be implemented in exam pattern

CBSE Board Exams Class 10 & 12 2020: Changes to be implemented in exam pattern Are you appearing for the CBSE Class 10 and 12 Board Exams 2020? If yes, then you have to check out what CBSE has brought the major changes for the CBSE class 10 and 12 board exams 2020...

CBSE Board Practical Exam 2020

CBSE Board Practical Exam 2020: Important changes in date sheet, internal/external examiners and more Are you doing preparations for class 10 and 12 CBSE board exams? If yes, then you have to see what major changes CBSE has brought in the CBSE date sheet for class 10...

CBSE schools to participate in National Assessment

CBSE schools to participate in National Assessment for Scientific Temperament and Aptitude According to the latest reports, CBSE has asked all its affiliated schools to encourage and motivate the students to participate in a national assessment programme which is...

×
Studies Today