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Science and Technology - 2 2013-2014 SSC (English Medium) Class 10th Board Exam Question Paper Solution

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Science and Technology - 2
2013-2014 March
Marks: 40

[10]1
[5]1.1
[3]1.1.1 | Find the odd one out:

Pancreas, Gall bladder, Glomerulus, Liver

Concept: Nutrition - Nutrition in Human Beings
Chapter: [13] Life's Internal Secrets

C2H4, C4H10, C3H8, CH4

Concept: Versatile Nature of Carbon - Nomenclature of Carbon Compounds
Chapter: [12] Amazing World of Carbon Compounds
[3]1.1.2

Match the following:

Column A Column B
(i) Stigma (a) Neuron
(ii) Pepsin (b) Carpel
(iii) Dendrites (c) Protein
(d) Stamen

 

Concept: Sexual Reproduction in Flowering Plants
Chapter: [3] Life Processes in Living Organisms Part - 2 [15] The Life Cycle
[5]1.2 | Rewrite the following statements by selecting the correct options:
[1]1.2.1

Iron is
(a) More reactive than zinc
(b) More reactive than aluminium
(c) Less reactive than copper
(d) Less reactive than aluminium

Concept: Metals and Nonmetals - Chemical Properties of Metals - Reactivity Series
Chapter: [11] Understanding Metals and Non-Metals
[1]1.2.2

…………. is a mode of asexual reproduction.
(a) Cloning
(b) Budding
(c) Pollination
(d) Germination

Concept: Reproduction - Modes of Reproduction Used by Single Organisms - Budding
Chapter: [15] The Life Cycle
[1]1.2.3

The percentage of water absorbed by raisins is calculated on dividing …………. by initial weight.
(a) Final weight
(b) Increased weight
(c) Decreased weight
(d) None of the above

Concept: Concept of Transportation
Chapter: [13] Life's Internal Secrets
[1]1.2.4

Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome

Concept: Concept of Respiration
Chapter: [13] Life's Internal Secrets
[1]1.2.5

…………. is not essential for photosynthesis.
(a) Oxygen
(b) Carbon dioxide
(c) Light
(d) Chlorophyll

Concept: Nutrition in Plants
Chapter: [13] Life's Internal Secrets
[10]2 | Answer any five of the following:
[2]2.1

Give any two differences between alkanes and alkenes.

Concept: Versatile Nature of Carbon - Saturated and Unsaturated Carbon Compounds
Chapter: [12] Amazing World of Carbon Compounds
[2]2.2

Write two methods of preventing the rusting of iron.

Concept: Corrosion and Its Prevention
Chapter: [11] Understanding Metals and Non-Metals
[2]2.3

Write the functions of the following organs of reproduction:
a. Ovaries
b. Seminal vesicle and prostate glands

Concept: Reproduction in Human Beings
Chapter: [15] The Life Cycle
[2]2.4

Draw a neat labelled diagram of vertical section of the human heart.

Concept: Concept of Transportation
Chapter: [13] Life's Internal Secrets
[2]2.5

Write a short note on pressure cooker.

Concept: Use of Efficient and Eco-friendly Technology
Chapter: [17] Striving for Better Environment 2
[2]2.6

Explain the term haemodialysis.

Concept: Concept of Excretion
Chapter: [13] Life's Internal Secrets
[15]3 | Answer any five of the following:
[3]3.1

Give the IUPAC names of the following compounds:
CH3CH2CH2OH

Concept: Versatile Nature of Carbon - Nomenclature of Carbon Compounds
Chapter: [12] Amazing World of Carbon Compounds

Give the IUPAC names of the following compounds:

HCOOH

Concept: Versatile Nature of Carbon - Nomenclature of Carbon Compounds
Chapter: [12] Amazing World of Carbon Compounds

Give the IUPAC names of the following compounds:

CH3-CH=CH-CH3

Concept: Versatile Nature of Carbon - Nomenclature of Carbon Compounds
Chapter: [12] Amazing World of Carbon Compounds
[3]3.2

Classify the following as voluntary and involuntary actions:
(a) Coughing
(b) Food getting digested
(c) Moving a table
(d) Kicking a ball
(e) Beating of heart
(f) Flying a kite

Concept: The Central Nervous System
Chapter: [14] The Regulators of Life
[3]3.3

What is ‘3R’ mantra?

Concept: Sustainable Use of Resources
Chapter: [17] Striving for Better Environment 2

Write ‘3R’ mantra significance

Concept: Sustainable Use of Resources
Chapter: [17] Striving for Better Environment 2
[3]3.4

What do you mean by DNA?

Concept: Reproduction - Introduction
Chapter: [15] The Life Cycle

What is the peculiarity of the ‘DNA’ structure?

Concept: Genetics: Mendel’s Laws of Inheritance
Chapter: [16] Mapping Our Genes

Name the scientist who put forward the most popular model of DNA.

Concept: Reproduction - Introduction
Chapter: [15] The Life Cycle
[3]3.5

Complete the following table to get the differences between asexual and sexual reproduction:

Characteristics Asexual Reproduction Sexual Reproduction
Number of parents involved ........................... ..............................
Type of cells involved Somatic cells Germ cells
Type of cell division ............................ Meiosis and mitosis
Concept: Sexual Reproduction
Chapter: [3] Life Processes in Living Organisms Part - 2 [15] The Life Cycle
[3]3.6

State the different types of neurons.

Concept: Human Nervous System
Chapter: [14] The Regulators of Life

Explain their neurons function.

Concept: The Central Nervous System
Chapter: [14] The Regulators of Life
[5]4 | Attempt any one of the following:
[5]4.1

In the extraction of aluminium: Name the process of concentration of bauxite.

Concept: Occurrence of Metals - Extracting Metals Towards the Top of the Activity Series
Chapter: [11] Understanding Metals and Non-Metals

In the extraction of aluminium Write the cathode reaction in electrolytic reduction of alumina.

Concept: Occurrence of Metals - Extracting Metals Towards the Top of the Activity Series
Chapter: [11] Understanding Metals and Non-Metals

In the extraction of aluminium: Write the function and formula of cryolite in the extraction of aluminium.

Concept: Occurrence of Metals - Extracting Metals Towards the Top of the Activity Series
Chapter: [11] Understanding Metals and Non-Metals

In the extraction of aluminium: Draw the diagram for the extraction of aluminium.

Concept: Occurrence of Metals - Extracting Metals Towards the Top of the Activity Series
Chapter: [11] Understanding Metals and Non-Metals
[5]4.2

Answer the following questions related to sex determination in human beings:
i. What is sex chromosome?
ii. How many pairs of chromosomes are present in human beings?
iii. How is the sex of the human offspring determined?
iv. Draw a diagram depicting sex determination in man.

Concept: Sex Determination - Sex Determination in Humans
Chapter: [16] Mapping Our Genes

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