Trending ▼   ResFinder  

CBSE Class 10 Pre Board 2021 : Science - Set 2 (CBSE Gulf Sahodaya Qatar Chapter, Doha)

13 pages, 121 questions, 0 questions with responses, 0 total responses,    0    0
CBSE 10 Pre Boards
  
+Fave Message
 Home > cbse10_pre_boards >   F Also featured on: School Page cbse10

Formatting page ...

PRE-BOARD EXAMINATION 2020-21 SUBJECT SCIENCE - STANDARD Class: X (CBSE) Total Marks: 80 Date: . Time: 3 hours _______________________________________________________________ General Instructions: All Questions are compulsory. Marks are indicated against each question. Please check this question paper contains 13 printed pages only. SECTION A 1. Balance the following chemical reaction: MnO2 + HCl -------- MnCl2 + Cl2 + H2O OR What is observed when a solution of potassium iodide is added to a solution of lead nitrate taken in a test tube? 1 2. Write the chemical equation for the reaction involved when sodium hydrogen carbonate is heated. 1 3. The solution of one of the following compounds will not conduct electricity. This compound is: a)NaCl b) CCl4 c) MgCl2 d) CaCl2 1 4. What is the nature of image formed by a concave mirror if the magnification produced by the mirror is +3? 1 5. Why does sky look blue on a clear day? 1 6. When is the force experienced by a current carrying conductor placed in a magnetic field is the largest? 1 7. State the rule which gives direction of magnetic field associated with a current carrying conductor. 1 8. Two unequal resistances are connected in parallel. If you are not provided with any other parameters (eg: numerical values of I and R), what can be said about the voltage drop across the two resistors? 1 OR Page 1 of 13

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

 

  Print intermediate debugging step

Show debugging info


 


Tags : cbse pre boards, prelims 2015 - 2016, preliminary examinations, central board of secondary education, india schools, free question paper with answers, tenth standard, xth std, board exams, mock, model, sample, specimen, past, free guess papers.india, delhi, outside delhi, foreign, cbse class x, cbse 10, cbse 10th standard, cbse papers, cbse sample papers, cbse books, portal for cbse india, cbse question bank, cbse question papers with answers, pre board exam papers, cbse model test papers, solved board question papers of cbse last year, previous years solved question papers, free online cbse solved question paper, cbse syllabus, india cbse board sample questions papers, last 10 years cbse questions papers, cbse important questions, specimen / mock papers.  

© 2010 - 2024 ResPaper. Terms of ServiceContact Us Advertise with us

 

cbse10_pre_boards chat