Sample Paper for Class 10 Science 2017 Pdf
Students can refer to the below Class 10 Science Sample Paper designed to help students understand the pattern of questions that will be asked in Grade 10 exams. Please download CBSE Class 10 Science Sample Paper 2017 Set A
Science Class 10 Sample Paper 2017
1 Differentiate between gustatory receptors and olfactory receptors.
2 Define the SI unit of Resistance.
3 The chief constituent of biogas is methane. List any two other constituents of biogas.
4 Explain how an ant acid works.
5 (i) In nature, metal "A‟ is found in free state while metal "B‟ is found in the form of its compounds. Which of the two will be nearer to the top of the activity series of metals? Why? (ii) In a solution of silver nitrate, a copper coin was placed. After sometime silver from the solution was deposited on the copper coin. Which metal is more reactive, copper or silver? Why?
6 Name the two enzymes secreted by pancreas. Write the function performed by these two enzymes.
7 State what happens when :
(i) electricity is passed through an aqueous solution of brine.
(ii) bleaching powder is exposed to air.
(iii) baking soda is heated.
Also write the chemical equation in each case.
8 Write balanced chemical equation for the following reactions and also name the type of chemical reaction in each case.
(a) Magnesium ribbon is burnt in air.
(b) Lime stone is heated.
9 What is meant by 'refining of metals? Draw neat and labelled diagram of electrolytic refining of copper.
10 Name the constituent elements of the following alloys :
(i) Brass (ii) Bronze (iii) Solder
Mention one use of each alloy.
11 State the source of secretion and function of the following hormones :
(i) Thyroxin (ii) Insulin (iii) Growth hormone
12 Define transpiration. State the significance of flattened structure of leaf.
13 How are oxygen and carbon dioxide transported in human beings ? How are lungs designed to maximize the area for exchange of gases ?
Please click the link below to download CBSE Class 10 Science Sample Paper 2017 Set A
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