Maharashtra SSC Class 10 Science and Technology I July 2025 question paper

Maximum marks 40 · Time 2 hours

Try each question first, then open its model answer. Where the paper offers a choice, both questions are shown with OR between them.

Get your answers checked, free

Write this paper on paper, timed, then upload photos or a PDF of your answers. You get marks for every question, what earned them and what was missing, within 48 hours.

Q.1 (A)

1 mark each

Q.1 (A) (i)1 mark $Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ____ .$
Tap an option to check your answer.
Q.1 (A) (ii)1 mark $When the positive charge on an atom or an ion increases or the negative charge on them decreases it is called ____ .$
Tap an option to check your answer.
Q.1 (A) (iii)1 mark $____ device is used to produce electricity.$
Tap an option to check your answer.
Q.1 (A) (iv)1 mark $Light changes its direction when going from one transparent medium to another transparent medium. This is called the ____ of light.$
Tap an option to check your answer.
Q.1 (A) (v)1 mark $Height of the High earth orbit from the surface of the earth is ____ .$
Tap an option to check your answer.

Q.1 (B)

1 mark each

Q.1 (B) (i)1 mark $Find the odd one out: Fuse wire, bad conductor, rubber gloves, generator.$
Q.1 (B) (ii)1 mark $Complete the co-relation. Red light wavelength close to : 700 nm :: Violet light wavelength close to : ____ .$
Q.1 (B) (iii)1 mark $Match the pair: Group 'A' Group 'B' Farsightedness (a) Faraway object can be seen clearly (b) Nearby object can be seen clearly (c) Faraway object cannot be seen clearly$
Q.1 (B) (iv)1 mark $Write the electronic configuration of 'Aluminium'.$
Q.1 (B) (v)1 mark $State true or false: The escape velocity on the moon is less than that on the earth.$

Group 'A'	Group 'B'
Farsightedness	(a) Faraway object can be seen clearly
	(b) Nearby object can be seen clearly
	(c) Faraway object cannot be seen clearly

Q.2 (A)

2 marks each · attempt any 2

Q.2 (A) (i)2 marks $Give scientific reason: Sodium is always kept in kerosene.$
Q.2 (A) (ii)2 marks $Give scientific reason: We cannot clearly see an object kept at a distance less than 25 cm from the eye.$
Q.2 (A) (iii)2 marks $Give scientific reason: Tungsten metal is used to make a solenoid type coil in an electric bulb.$

Q.2 (B)

2 marks each · attempt any 3

Q.2 (B) (i)2 marks $g$
Q.2 (B) (ii)2 marks $An element has its electronic configuration as 2, 8, 2. Now answer the following questions: (a) What is the atomic number of this element? (b) To which period does this element belong?$
Q.2 (B) (iii)2 marks $CuSO_{4(aq)} + Fe_{(s)} \rightarrow$
Q.2 (B) (iv)2 marks $Define specific heat of an object. Write its SI and CGS units.$
Q.2 (B) (v)2 marks $CH_4$

Q.3

3 marks each · attempt any 5

Q.3 (i)3 marks $Explain the concept 'escape velocity' in detail.$
Q.3 (ii)3 marks $Answer the following sub-questions regarding the modern periodic table: (a) Write modern periodic law. (b) Write the number of periods and groups. (c) What is the valency of halogens?$
Q.3 (iii)3 marks $HCl + NaOH \rightarrow NaCl + H_2O + Heat$
Q.3 (iv)3 marks $Identify figure and write one use of it: (a), (b), (c)$
Q.3 (v)3 marks $20^\circ C$
Q.3 (vi)3 marks $Write the Cartesian sign convention for lenses.$
Q.3 (vii)3 marks $Complete the following chart: (a chart of satellites with the given entries IRNSS, Weather Study and Predict, and Earth's Observation; the other boxes are to be filled)$
Q.3 (viii)3 marks $Give the chemical equations for the following reactions: (a) Thermit reaction (b) Burning of magnesium in air (c) Iron nail/dust is dropped in aqueous solution of copper sulphate.$

Q.4

5 marks each · attempt any 1

Q.4 (i)5 marks $"A rainbow is the combined effect of the refraction, dispersion and total internal reflection of light." Prove this statement with the help of diagram and explain it.$

Q.4 (ii)5 marks

CH_4

Sr. No.	Straight chain of carbon atoms	Molecular formula	Name
1.	C	$CH_4$	____
2.	C-C	____	Ethane
3.	C-C-C	$C_3H_8$	____
4.	C-C-C-C	____	Butane
5.	C-C-C-C-C	$C_5H_{12}$	____
6.	C-C-C-C-C-C	____	Hexane
7.	C-C-C-C-C-C-C	____	Heptane
8.	C-C-C-C-C-C-C-C	$C_8H_{18}$	____
9.	C-C-C-C-C-C-C-C-C	____	Nonane
10.	C-C-C-C-C-C-C-C-C-C	____	Decane