10th Standard CBSE Syllabus & Materials
10th Standard CBSE
CBSE 10th Social Science ECO - Globalisation and the Indian Economy - New Model Questions Papers Study Material - QB365 Set A
NEW10th Standard CBSE
CBSE 10th Social Science ECO - Money and Credit - New Model Questions Papers Study Material - QB365 Set A
NEW10th Standard CBSE
CBSE 10th Social Science ECO - Sectors of the Indian Economy - New Model Questions Papers Study Material - QB365 Set A
NEW10th Standard CBSE
CBSE 10th Social Science ECO - Development - New Model Questions Papers Study Material - QB365 Set A
NEW10th Standard CBSE
CBSE 10th Social Science PS - Outcomes of Democracy - New Model Questions Papers Study Material - QB365 Set A
NEW10th Standard CBSE
CBSE 10th Social Science PS - Gender, Religion and Caste - New Model Questions Papers Study Material - QB365 Set A
Published on: 29/05/2021
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Download CBSE Class 10th Standard CBSE Science question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 10th Standard CBSE Science
Questions + Answers key
Take MCQ Science Test1.
A, B, C are members of homologous series and their melting points are -183°C, -138°C, 130°C respectively. Among these
(i) Which member will have least number of carbon atoms?
(ii) Which member will have maximum number of carbon atoms?
2.
How will you convert ethanol to ethene?
3.
An organic compound 'X' is a constituent of wine and beer. The compound X on heating with potassium dichromate forms another organic compound 'Y'. Identify the compound X and Y.
4.
An organic compound 'A' which is used as antifreeze has the molecular formula C2H6O. On addition, it gives a compound 'B' which baking soda solution. Identify the compound A and B.
5.
Which of the following compounds contain a carboxyl group?
CH3OH, CH3COOH, CH3CHO, CH3COCH3
1.
(i) A will have least number of carbon atoms.
(ii) C will have maximum number of carbon atoms.
2.
\(CH_3- \underset { Ethene }{CH_2 }-OH \xrightarrow [ ]{ Conc.H_2SO_4/433-443K } \underset { Ethene }{CH_2= CH_2 }+H_2O \)
3.
Compound X is ethanol and Compound Y is acetic acid or ethanoic acid.
4.
Compound A is ethanol and compound B is ethanoic acid.
5.
CH3COOH
10th Standard CBSE Syllabus & Materials
10th Standard CBSE
CBSE 10th Social Science PS - Federalism - New Model Questions Papers Study Material - QB365 Set A
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CBSE 10th Social Science PS - Power Sharing - New Model Questions Papers Study Material - QB365 Set A
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CBSE 10th Social Science GEO - Manufacturing Industries - New Model Questions Papers Study Material - QB365 Set A
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CBSE 10th Social Science GEO - Minerals and Energy Resources - New Model Questions Papers Study Material - QB365 Set A
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