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

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Science and Technology 2
Marks: 40 Maharashtra State Board
SSC (English Medium)
SSC (Marathi Semi-English)

Academic Year: 2013-2014
Date: ऑक्टोबर 2013
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Section B
[10]1
[5]1.A
[3]1.A.a | Fill in the blanks and rewrite the statements:
[1]1.A.a.i

The general formula of Alkane is _________________

Concept: undefined - undefined
Chapter: [12] Amazing World of Carbon Compounds
[1]1.A.a.ii

________ is the largest gland in the body.

Concept: undefined - undefined
Chapter: [0.13] Life's Internal Secrets
[1]1.A.a.iii

The loss of water from the plants is known as ______

Concept: undefined - undefined
Chapter: [0.13] Life's Internal Secrets
[2]1.A.b | State whether the following statements are True or False:
[1]1.A.b.i

The daughter cells produced by asexual reproduction are genetically identical to the parent cell.

True

False

Concept: undefined - undefined
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[1]1.A.b.ii

In the sexual mode of reproduction, greater diversities are generated.

True

False

Concept: undefined - undefined
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[5]1.B | Choose the correct alternative and rewrite the following:
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[1]1.B.a

Ethanoic acid _________.

is odourless

has a pungent smell

has a smell of rotten egg

has a vinegar-like an odour
Concept: undefined - undefined
Chapter: [12] Amazing World of Carbon Compounds
[1]1.B.b

Which of the following is a mode of asexual reproduction?

Fission

Budding

spore formation

All of the above

Concept: undefined - undefined
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[1]1.B.c

In hydra the type of reproduction is ___________.

Binary fission

Budding

Multiple fission

None of the above

Concept: undefined - undefined
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[1]1.B.d

Which of the following is not essential for photosynthesis?

Oxygen

Carbon dioxide

Sunlight

Chlorophyll

Concept: undefined - undefined
Chapter: [0.14] The Regulators of Life
[1]1.B.e

Ankita bought some Glucose Powder. She felt is was adulterated with starch powder. How would she test it?

by sieving

by dissolving it in water

by iodine test

all of the above

Concept: undefined - undefined
Chapter: [11] Understanding Metals and Non-Metals
[10]2 | Answer the following sub questions: (any five)
[2]2.A

Sodium is stored under kerosene. Give reason.

Concept: undefined - undefined
Chapter: [12] Amazing World of Carbon Compounds
[2]2.B

What are hydrocarbons? Give one example.

Concept: undefined - undefined
Chapter: [12] Amazing World of Carbon Compounds
[2]2.C

Distinguish between: Autotrophic nutrition and Heterotrophic nutrition.

Concept: undefined - undefined
Chapter: [0.13] Life's Internal Secrets
[2]2.D
Draw a well-labelled diagram of the ‘Liver’.
Concept: undefined - undefined
Chapter: [0.13] Life's Internal Secrets
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[2]2.E

What is pollination? Mention its types.

Concept: undefined - undefined
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[2]2.F

Define Heredity. Give two examples.

Concept: undefined - undefined
Chapter: [0.01] Heredity and Evolution [0.16] Mapping Our Genes
[15]3 | Answer any five of the following sub-questions:
[3]3.A

Write three methods of preventing rusting of iron.

Concept: undefined - undefined
Chapter: [11] Understanding Metals and Non-Metals
[3]3.B

Draw a well-labelled diagram of extraction of Aluminium. Write the anode reaction in electrolytic reduction of Alumina.

Concept: undefined - undefined
Chapter: [11] Understanding Metals and Non-Metals
[3]3.C

What are the functional groups? Name any two compounds containing functional groups.

Concept: undefined - undefined
Chapter: [12] Amazing World of Carbon Compounds
[3]3.D

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: undefined - undefined
Chapter:
[3]3.E

Explain the two examples, movements in plants that are growth independent.

Concept: undefined - undefined
Chapter: [0.14] The Regulators of Life
[3]3.F

What is meant by vegetative propagation? Name the vegetative parts through which Potato and Bryophyllum reproduce.

Concept: undefined - undefined
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[5]4 | Write the answer of any one questions given below:
[5]4.A
(a) How many pairs of autosomes and Paris of sex chromosomes are present in a human being?  
(b) Which chromosomes are present in Females? 
(c) Which chromosomes are present in Male? 
(d) How does sex determination take place in human beings? 
Concept: undefined - undefined
Chapter: [0.16] Mapping Our Genes
[5]4.B

State the powders of Maharashtra Pollution Control Board (MPCB) to control the Air Pollution.

Concept: undefined - undefined
Chapter: [0.17] Striving for Better Environment 2

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