CBSE Class 10 E-Publishing And E-Office(Commerce) Question Paper 2019 with Answer Key (February 21)

CBSE Class 10 E-Publishing And E-Office(Commerce) Question Paper 2019 with Answer Key is available for download. The exam was conducted by the Central Board of Secondary Education on February 21, 2019 in the Morning Session 10:30 AM to 12:30 PM. The medium of paper was English and Hindi. The question paper comprised a total of 14 questions.

CBSE Class 10 E-Publishing And E-Office(Commerce) Question Paper 2019 with Answer Key (February 21)

CBSE Class 10 E-Publishing And E-Office(Commerce) Question Paper 2019 PDF	CBSE Class 10 E-Publishing And E-Office(Commerce) Answer Key 2019 PDF
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CBSE X Questions

1.
Paddy fields require a large amount of water. The pesticides and chemical fertilizers used are washed down into the soil or waterbodies. How do these chemicals reach our bodies? What is this phenomenon known as?

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2.
Prove that: \(\frac{\sec^3 \theta}{\sec^2 \theta - 1} + \frac{\csc^3 \theta}{\csc^2 \theta - 1} = \sec \theta \cdot \csc \theta (\sec \theta + \csc \theta)\)

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3.
A trader has three different types of oils of volume \(870 \text{ l}\), \(812 \text{ l}\) and \(638 \text{ l}\). Find the least number of containers of equal size required to store all the oil without getting mixed.

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4.
(a) Why did many Europeans migrate to America after the sixteenth century? Explain. OR (b) How did trade and long distance travel contribute to the spread of diseases during the ancient period? Explain.

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5.
Show the formation of ionic compound CaO with electron dot structure.

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6.
A conical cavity of maximum volume is carved out from a wooden solid hemisphere of radius 10 cm. Curved surface area of the cavity carved out is (use \(\pi = 3.14\))

\(314 \sqrt{2}\) \(\text{cm}^{2}\)
\(314\) \(\text{cm}^{2}\)
\(\frac{3140}{3}\) \(\text{cm}^{2}\)
\(3140 \sqrt{2}\) \(\text{cm}^{2}\)

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CBSE Class 10 E-Publishing And E-Office(Commerce) Question Paper 2019 with Answer Key (February 21)

CBSE Class 10 E-Publishing And E-Office(Commerce) Question Paper 2019 with Answer Key (February 21)

CBSE Class 10 Previous Year Question Papers

CBSE X Questions

1.
Paddy fields require a large amount of water. The pesticides and chemical fertilizers used are washed down into the soil or waterbodies. How do these chemicals reach our bodies? What is this phenomenon known as?

2.
Prove that: \(\frac{\sec^3 \theta}{\sec^2 \theta - 1} + \frac{\csc^3 \theta}{\csc^2 \theta - 1} = \sec \theta \cdot \csc \theta (\sec \theta + \csc \theta)\)

3.
A trader has three different types of oils of volume \(870 \text{ l}\), \(812 \text{ l}\) and \(638 \text{ l}\). Find the least number of containers of equal size required to store all the oil without getting mixed.

4.
(a) Why did many Europeans migrate to America after the sixteenth century? Explain. OR (b) How did trade and long distance travel contribute to the spread of diseases during the ancient period? Explain.

5.
Show the formation of ionic compound CaO with electron dot structure.

6.
A conical cavity of maximum volume is carved out from a wooden solid hemisphere of radius 10 cm. Curved surface area of the cavity carved out is (use \(\pi = 3.14\))

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CBSE Class 10 E-Publishing And E-Office(Commerce) Question Paper 2019 with Answer Key (February 21)

CBSE Class 10 Previous Year Question Papers

CBSE X Questions

1.Paddy fields require a large amount of water. The pesticides and chemical fertilizers used are washed down into the soil or waterbodies. How do these chemicals reach our bodies? What is this phenomenon known as?

2.Prove that: \(\frac{\sec^3 \theta}{\sec^2 \theta - 1} + \frac{\csc^3 \theta}{\csc^2 \theta - 1} = \sec \theta \cdot \csc \theta (\sec \theta + \csc \theta)\)

3.A trader has three different types of oils of volume \(870 \text{ l}\), \(812 \text{ l}\) and \(638 \text{ l}\). Find the least number of containers of equal size required to store all the oil without getting mixed.

4.(a) Why did many Europeans migrate to America after the sixteenth century? Explain. OR (b) How did trade and long distance travel contribute to the spread of diseases during the ancient period? Explain.

5. Show the formation of ionic compound CaO with electron dot structure.

6.A conical cavity of maximum volume is carved out from a wooden solid hemisphere of radius 10 cm. Curved surface area of the cavity carved out is (use \(\pi = 3.14\))

Comments

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1.
Paddy fields require a large amount of water. The pesticides and chemical fertilizers used are washed down into the soil or waterbodies. How do these chemicals reach our bodies? What is this phenomenon known as?

2.
Prove that: \(\frac{\sec^3 \theta}{\sec^2 \theta - 1} + \frac{\csc^3 \theta}{\csc^2 \theta - 1} = \sec \theta \cdot \csc \theta (\sec \theta + \csc \theta)\)

3.
A trader has three different types of oils of volume \(870 \text{ l}\), \(812 \text{ l}\) and \(638 \text{ l}\). Find the least number of containers of equal size required to store all the oil without getting mixed.

4.
(a) Why did many Europeans migrate to America after the sixteenth century? Explain. OR (b) How did trade and long distance travel contribute to the spread of diseases during the ancient period? Explain.

5.
Show the formation of ionic compound CaO with electron dot structure.

6.
A conical cavity of maximum volume is carved out from a wooden solid hemisphere of radius 10 cm. Curved surface area of the cavity carved out is (use \(\pi = 3.14\))