Board QP-July 2023-Class 10-Science and Technology-1-Maharashtra Board

SCIENCE & TECHNOLOGY – I - Maharashtra State Board

[Time: 2 Hours] JULY-2023 [Max. Marks: 40]

Note:

All the questions are compulsory.
Use of a calculator is not allowed.
The numbers to the right of the questions indicate full marks.
In case of MCQs [Q. No. 1(A)] only the ﬁrst attempt will be evaluated and will be given credit.
For each MCQ, the correct alternative (A), (B), (C) or (D) with subquestion number is to be written as an answer. For e.g.: (i) (A), (ii) (B), (iii) (C).
Scientiﬁcally correct, labelled diagrams should be drawn wherever necessary.

Q.1 (A) Choose the correct alternative and write the correct option: (5)

(i) ................ .. has the highest refractive index.

(A) Air (B) Water (C) Glass (D) Diamond

(ii) The left hand side of a chemical reaction represents ................

(A) Product (B) Reactants (C) Catalyst (D) Indicator

(iii) In ........ ...... .. block of the modern periodic table non- metals are found.

(A) s-block (B) d-block (C) p-block (D) f-block

(iv) The chemical reaction in which two or more products are formed from

a single reactant is called -. ............... ..

(A) Decomposition (B) Combination (C) Displacement (D) Double displacement

(v) If the refractive index of glass with respect to air is , the refractive index

of air with respect to glass is ................

(A) (B) 3 (C) (D)

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