2019 10th standard science sate level preparatory question paper with answer
Answers
Aw the following
Mown memical of Baking soda
2) Aluminium ride is an amphorie ocide. Why?
De electromagnetic induction
What is person of light?
W mixed with Potatham taken beaker A & Salt solution is taken in beakers
The passed through both the heaken in which beaker the path of light is visible? Why
Goose & alcohol solutions do not conduct electricity. Why?
7) What is gidation
The distance of a som & image distance 10cm Find the manication of
The size of the object
them with the help of this decide whether the size of the image is smaller or bigger than
Was dioptre of Power of len?
Wat Write the chemical equation
TONCIM. Fe which among these metals can displace hydropeneas very vigorously from
1) St Joule's law. Write its mathematical form
II Answer the followings 16 x 2 = 32
12) State Maxwell's Corkscrew rule
14) Construction of dat may be disadvantage. Justify the statement with reason
13) What are the recautions can be undertaken to avoid verloading la domestic circuit?
15) Will the molecular & structural formula of Bromohertine & Chloro Pentaine
A part of Periodic table is given which among these is more
NM Electropositive? Why
7) Why are carbon & its compounds sed ad fuels for most applications?
18) Wwy is normal eye not able to see clearly the objects placed closer than 25cm
ii) red colour selected for danger seals
19) Dew labelled diagram of electrolytic refining of copper
20) 1) Detine an alloy) Write 2 important purposes of making alloy,
in) Write the constituents of brass, bronze, solder, stainless
21) State the rule which gives the direction of induced current
22) Stade laws of Refraction of light.
23) Druw the ray diagram showing the formation of image when the object is kept beyond
centre of curvature (c) of a concave mirror.
Calculate the total resistance of circuit.
24)RE Ri=50 R = 100 2002
34)
25) A copper wire of resistivity 1.6x 10 ohm-metre has a cross-sectional area of 20 x 10 cm
Calcolate the length of this wire required to make a coil of 100
26) Explain the Process of Preparation of bleaching powder & mention any one use of it
P.T.O
III Answer the following 5
Schw. Draw the circuit diagram sed to verity ohm law
28 Write the balanced chemical equation for
Ethanoic acid reacts with ethanol in the presence of an acid
by Ethpole scid reacts with Sodium bicarbonate
a) Write the General formula for the series CH CH CH2
29) What is Hermetropia write the remedy for it & show it by ray diagra
3011) Mentioniny properties of Magnetic lines of force
esery 0.01 second?
What would be the trency of an alternating current its direction changes
1) What is acidity Mention 2 methods to prevent it
How is corrosion is different from rusting of metals
IVAnswer the following:
32) a) Series arrangement is not used for domestic circuit. Why?
b) Find the minimum resistance that can be made in resistor each of
C) A potential diference or 230V is applied across restance of an electric
appliance Calculate the current dran & heat energy produced in 20 seconds.
331 Write the balanced chemical equations of
Limestone when heated m) Sodium Sulphate reacts with barium chloride
Biology
iii) Hydrogen Sulphide gas burns in airi Sedium reacts with water
I Answer the following question: 10 x 2 = 20
1) Define: i) Food chain li Synapse
3) Sex of a child depends on sperm. Give reason
2) State the functions of a) Cerebellum b) Cytokinin c) Medulla oblongati
7) What is Ecosystem? List its main components
3) What is the colour of destarched leaf when placed in lodine solution?
4) Differentiate between Biodegradable and non-biodegradable substances with an example
6) Draw a neat labelled diagram of Nephron
8) Differentiate RBC and WBC
9) Draw a neat labelled diagram of Reflex arc
10) Mention any two adaptations of leaf for Photosynthesis
genotype and phenotype
A pure Tall plant (IT) is crossed with pure Dwarf plant (tt). Finds its F&F progeny with
3) What are the methods used by plants to get rid of excretory products?
Answer briefly 5x3 = 15
giving two examples that even plants respond to stimuli.
2) Suggest a proof that even unicellular organisms like amoeba respond to stimuli. Justify
a) Peristaltic movements do not occur all along the oesophagus.
4) What will happen if
c) Rings of cartilage are not present in the trachea.
5) Give reason:
b) There are no platelets in blood.
a Pituitary gland is known as Master Gland
Variations are important for the survival of species over time
b) Why do we urinate more often in winter than in summer