SSC (Marathi Semi-English) १० वीं कक्षा - Maharashtra State Board Question Bank Solutions for Science and Technology 1

Taking into consideration the period of the elements given below, answer the following questions: 

1. Arrange the above elements in decreasing order of their atomic radii.
2. State the period to which the above elements belong.
3. Why this arrangement of elements is similar to the above period of modern periodic table?
4. Which of the above elements have the biggest and the smallest atom?
5. What is the periodic trend observed in the variation of atomic radius while going from left to right within a period?

How can the rate of the chemical reaction, namely, decomposition of hydrogen peroxide be increased?

Name the following diagram and explain the concept behind it.

State the modern periodic law.

The equivalent resistance of a parallel combination of two resistors of 30 Ω and 60 Ω is ______________.

(a) Fill in the blanks and rewrite the completed statements: 

(i) ________ group in the periodic table contains elements that are all gases at room temperature. 

(ii) Very fine particles mainly scatter ______ light.

Differentiate between conductors and insulators.

State Fleming’s Right Hand Rule.

Answer the following:

State the principles of the electric motor and electric generator. 

Fill in the blank and rewrite the completed statement:

________ group in the periodic table contains elements that are all gases at room temperature.

If an object is placed in front of a convex lens beyond 2F1, then what will be the position, relative size, and nature of an image which is formed? Explain with a ray diagram.

Answer the following question:
State the four blocks of the modern periodic table based on the electronic configuration of elements.

Choose the correct option:

A conductor rod of length (l) is moving with velocity (v) in a direction normal to a uniform magnetic field (B). What will be the magnitude of induced emf produced between the ends of the moving conductor?

Observe the given figure of Fleming’s Right Hand Rule and write the labels of A and B correctly.

The groups 1 and 2 constitute the _______ block.

Which of the following statements about the Modern periodic table is correct?