Day 40: MH SSC Class 10 Science and Technology I

5 questions (11 parts). Try each one first, then open its answer.

Question 1
Chemical Reactions and Equations. Asked once: Jul 2024 (same type asked 5 times)
Q2(B)(iii) $2H_2S + SO_2 \longrightarrow 3S\downarrow + 2H_2O$
Question 2 (case study, 3 parts)
Heat. Asked once: Mar 2023 (same type asked 5 times)
Observe the figure titled 'Specific heat capacity of metals' (identical balls of iron, copper and lead, heated to the same temperature, placed on a layer of wax) and answer the following:
Q3(vi)(a) $Which element has maximum specific heat capacity? Justify.$
Q3(vi)(b) $Which element has minimum specific heat capacity? Justify.$
Q3(vi)(c) $Define specific heat of an object.$
Question 3
Metallurgy. Asked once: Mar 2024 (same type asked 5 times)
Q2(A)(ii) $Give scientific reason: Tungsten metal is used to make a solenoid type coil in an electric bulb.$
Question 4 (case study, 5 parts)
Periodic Classification of Elements. Asked once: Mar 2019 (same type asked 5 times)
Taking into consideration the period of the elements given below, answer the following questions:
Elements Atomic Radius (pm)
O 66
B 88
C 77
N 74
Be 111
Li 152
Q4(1)(i) $Arrange the above elements in a decreasing order of their atomic radii.$
Q4(1)(ii) $State the period to which the above elements belong.$
Q4(1)(iii) $Why is this arrangement of elements similar to the above period of the modern periodic table?$
Q4(1)(iv) $Which of the above elements have the biggest and the smallest atom?$
Q4(1)(v) $What is the periodic trend observed in the variation of atomic radius while going from left to right within a period?$
Question 5
Periodic Classification of Elements. Asked once: Mar 2016 (same type asked 5 times)
Q3(1) $What are the main features of Mendeleev's periodic table?$

Elements	Atomic Radius (pm)
O	66
B	88
C	77
N	74
Be	111
Li	152

Question 1

Question 2 (case study, 3 parts)

Question 3

Question 4 (case study, 5 parts)

Question 5