Trending ▼   ResFinder  

ICSE Class IX Prelims 2021 : Chemistry (Sarvodaya Vidyalaya, Nalanchira, Thiruvanathapuram)

2 pages, 32 questions, 0 questions with responses, 0 total responses,    2    0
Deepthi Rajesh
Srkgvmghss, Thrissur
+Fave Message
 Home > rajeshvrr >   F Also featured on: School Page icse9 and 1 more

Formatting page ...

SARVODAYA VIDYALAYA, TRIVANDRUM 15 FIRST TERM EXAMINATION 2020 21 STD IX CHEMISTRY ICSE Marks:50 Time 1 Hr SECTION A I. Fill in the blanks 5 marks 1. Photosynthesis is an example of reaction. 2. Symbolic representation for a molecule is called _______ 3. ______ is the combining capacity of an atom or radical. 4. An equation should be balanced in order to comply with the law of ______ 5. Colour of chlorine gas is ______ II. Choose the correct word from the brackets given. 5 marks 1. The number of carbon atoms in a hydrogen carbonate radical is ______ (one/two/three) 2. Negative ions are known as _______(cations/anions/radicals) 3. The element which shows variable valency is ______ (iron/aluminium/sodium). 4. A carbonate which does not decompose on heating is _______ (CaCO3/ZnCO3/Na2CO3) 5. The basic radical of barium sulphate is _______ (Ba2+/Ba+/SO42-) III. Write the chemical formulae of the following compounds. 3 marks 1. Magnesium phosphate 2. Potassium dichromate 3. Sodium oxide IV. What is the valency of 1. Phosphorous in PH3 2. Nitrogen in NO2 3. Magnesium in Mg3N2 3 marks V. Differentiate between the following 1. Combination reaction and Decomposition Reaction 4 marks PAGE 1

Formatting page ...

 

  Print intermediate debugging step

Show debugging info


 

Additional Info : ICSE Class IX Board Exam 2020 : Chemistry  

© 2010 - 2021 ResPaper. Terms of ServiceContact Us Advertise with us

 

rajeshvrr chat