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Science and Technology 2 2014-2015 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: 2014-2015
Date: July 2015
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Section-B
[10]1
[5]1.A
[2]1.A.a
[1]1.A.a.i

Fill in the blank:

______________ is a greenish coloured poisonous gas.

Concept: undefined - undefined
Chapter: [0.17] Striving for Better Environment 2
[1]1.A.a.ii

Compound with identical molecular formulae but different structures, are called _____________.

Concept: undefined - undefined
Chapter:
[1]1.A.b

Name the following: Cells that assist the neuron in their function

Concept: undefined - undefined
Chapter:
[2]1.A.c

Match the following:

Column ‘I’ Column ‘II’
(1) Inhibits plant growth
(a) Breaks large fat globules into smaller ones
(2) Cytokinins
(b) Auxins
(3) Cellular respiration
(c) Mitochondria
(4) Bile
(d) Promote cell division
 
(e) Abscisic acid
Concept: undefined - undefined
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[5]1.B
[1]1.B.a

Choose the correct alternative and rewrite the following:

Which gas is released in plants during the process of photosynthesis?

Carbon dioxide

Oxygen

Nitrogen

Hydrogen

Concept: undefined - undefined
Chapter: [0.13] Life's Internal Secrets
[1]1.B.b

Choose the correct alternative and rewrite the following:

To observe the hydro and clearly, Raju should see it first under the low power lens and then under the high power lens in order to see _____________

less area

wide area

more buds

all of the above

Concept: undefined - undefined
Chapter: [12] Amazing World of Carbon Compounds
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[1]1.B.c

Choose the correct alternative and rewrite the following:

Reaction of iron nails whith copper sulphate solution is an example of _____________________

combination reaction

decomposition reaction

displacement reaction

double displacement reaction.

Concept: undefined - undefined
Chapter:
[1]1.B.d

Choose the correct alternative and rewrite the following:

Which of the following is lue in colour?

CuSO4

FeSO4

ZnSO4

Al2 (SO4)3

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Chapter:
[1]1.B.e

Choose the correct alternative and rewrite the following: 

Acetic acid ..................

is insoluble in water

turns blue litmus red

is pale yellow in colour

none of the above

Concept: undefined - undefined
Chapter: [12] Amazing World of Carbon Compounds
[10]2 | Attempt any five questions:
[2]2.A

Calcium floats over water during the reaction with water. Give reason.  

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Chapter:
[2]2.B

Differentiate between Toilet soap and Laundry soap.

Concept: undefined - undefined
Chapter: [12] Amazing World of Carbon Compounds
[2]2.C
How do plants get rid of their excretory products?
Concept: undefined - undefined
Chapter: [0.14] The Regulators of Life
[2]2.D

Draw a well-labeled diagram of a Neuron.

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Chapter: [0.14] The Regulators of Life
[2]2.E

Write a short note on regeneration.

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

What do you mean by ‘Connecting Links’? Give one example.

Concept: undefined - undefined
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
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[15]3 | Attempt any five questions:
[3]3.A

Explain Mendel’s Monohybrid cross. Give an example.

Concept: undefined - undefined
Chapter: [0.16] Mapping Our Genes
[3]3.B

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: undefined - undefined
Chapter: [0.16] Mapping Our Genes
[3]3.C
[1.5]3.C.a

What do you mean by seismonastic movement?

Concept: undefined - undefined
Chapter: [0.14] The Regulators of Life
[1.5]3.C.b

Name the types of movements in plants. Give one example of each movement.

Concept: undefined - undefined
Chapter: [0.14] The Regulators of Life
[3]3.D
If the electronic configuration of metal A is (2, 8, 1) and that of metal B is (2, 8, 2) then:
a. Which metal is less reactive?
b. Write the names of the two metals.
c. Write the balanced chemical equation of the reaction of anyone metal with hydrochloric acid.
Concept: undefined - undefined
Chapter: [11] Understanding Metals and Non-Metals
[3]3.E

What are Allotropes? Name any two allotropic forms of carbon. Give one use of it.

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Chapter: [12] Amazing World of Carbon Compounds
[3]3.F

By which process do green plants synthesize their food?

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

Name the factors which take part in this process.

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

Write the chemical equation of the above process.

Concept: undefined - undefined
Chapter:
[5]4 | Attempt any one questions:
[5]4.A

Name the organs of the human male reproductive system and state the functions of any two organs.

Concept: undefined - undefined
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[5]4.B

State the functions of the Maharashtra Pollution Control Board.

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

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