SI unit of temperature is

(a)

fahrenheit

(b)

joule

(c)

celsius

(d)

kelvin

Electroplating is an example for

(a)

heating effect

(b)

chemical effect

(c)

flowing effect

(d)

magnetic effect

Bond formed between a metal and non-metal atom is usually____________

(a)

ionic bond

(b)

covalent bond

(c)

co-ordinate bond

(d)

metallic bond

Since metal carbonate and metal bicarbonate are basic they react with acids to give salt and water with the liberation of__________

(a)

NO₂

(b)

SO₂

(c)

CO₂

(d)

SO₄

The tissue composed of living thin walled polyhedral cell is

(a)

Parenchyma

(b)

Collenchyma

(c)

Sclerenchyma

(d)

None of above

The direction opposite to the movement of electron is called _______ current.

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alternating

No force acts in a current carrying conductor when it is __________ the magnetic field.

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parallel

__________tissues provide mechanical support to organs.

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Collenchyma

A generator converts mechanical energy into electrical energy

(a) True

(b) False

Vessels are found in collenchyma.

(a) True

(b) False

How much heat energy is required to change 2 kg of ice at 0ºC into water at 20ºC? (Specific latent heat of fusion of water = 3,34,000J/kg, Specific heat capacity of water = 4200JKg^-1K^-1).

What is the effective resistance across the terminals a and b of the arrangement of resistors?

List the main parts of an electric motor.

Differentiate step up and step down transformer.

State modern periodic law.

Name the components of xylem and phloem.

1. Complete the missing terms in the following table:

   Process	Phase I	Phase II
   Sublimation		Vapour
   Solidification		Solid
   	Solid	Liquid
   Freezing	Liquid
   Condensation		Liquid

2. Complete the following table referring the modern periodic table:

   Period number	Total no of elements	Elements		Total no of elements in
   		From	To	s-block	p-block	d-block	f-block
   1
   2
   3
   4
   5
   6
   7

Mark the correct choice as:
(a) If both assertion and reason are true and reason is the correct explanation of assertion.
(b) If both assertion and reason are true but reason is not the correct explanation of assertion.
(c) If assertion is true but reason is false.
(d) If assertion is false but reason is true.
Assertion: Food can be cooked faster in vessels with copper bottom.
Reason: Copper is the best conductor of heat.

Statement: Elements in a group generally possess similar properties but elements along a period have different properties.
Reason: The difference in electronic configuration makes the element differ in their chemical properties along a period.
a) Statement is true and reason explains the statement.
b) Statement is false but the reason is correct.

Ice is kept in a double-walled container. Why?

Calculate the amount of charge that would flow in 2 hours through an element of an electric bulb drawing a current of 2.5A.

State an important advantage of ac over dc.

Two coils A and B of insulated wire are kept close to each other. Coil A is connected to a galvanometer. While coil B is connected to a battery through a key. What would happen if
(i) a current is passed through coil B by plugging the key?
(ii) the current is stopped by removing the plug from the key?

What are the limitations of Mendeleev's periodic table?

Identify the following reactions as oxidation or reduction
a. Na \(\rightarrow\)Na⁺ + e^-.
b. Fe³⁺ + 2e^-\(\rightarrow\) Fe⁺

Find the odd one out: Lemon juice, Tomato juice, House hold ammonia, Coffee

Give the sequence of the events occurring during prophase of mitosis.

Identify the following parts:
1. It conducts food from pharynx to stomach by peristalsis-
2. Finger-like projections which enhances the absorbing capacity of small intestine-
3. The bunch of capillaries inside the Bowman’s capsule-
4. Thin muscular tubes which carry urine from kidney to urinary bladder-
5. Small sac-like muscular structures that encloses testes-

Match the parts of the given figure with the correct option.

1	2	3	4	5
a.Fallopian tube	Oviduct	Uterus	Cervix	Vagina
b.Oviduct	Cervix	Vagina	Ovary	Vas deferens
c.Ovary	Oviduct	Uterus	Vagina	Cervix
d.Fallopian tube	Ovary	Cervix	Uterus	Vagina

Name the parts of a computer

1. What are the changes of state in water? Explain.

2. Draw a circuit with a 2\(\Omega\) and 5\(\Omega\) resistors in series. Connect another 3\(\Omega\) resistor parallel to the above connection.

1. Explain two types of transformer.

2. State any five features of modern periodic table.

1. Find the oxidation number of the elements in the following compounds.
   a. C in CO₂
   b. Mn in MnSO₄
   c. N in HNO₃

2. Why does distilled water not conduct electricity whereas rain water does?

1. Identify the following relationship
   Cuboidal : Epithelial
   Cardiac :_____________
   Granulocytes : _______________
   Osteocytes :_______________

2. Describe the alimentary canal of man.