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ICSE Class X Prelims 2023 : Chemistry (Mercy Memorial School (MMS), Kanpur)

8 pages, 87 questions, 79 questions with responses, 80 total responses,    2    0
Kartik Gupta
Mercy Memorial School (MMS), Kanpur
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Mercy Memorial School, Kanpur Class: X Pre-board Examination 2022 -23 Date:06-02-2023 CHEMISTRY MM-80 Time: 2 Hrs. (SCIENCE PAPER-2) Answers to this Paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of this Paper is the time allowed for writing the answers. This question paper is divided into two sections. Section A is compulsory. Attempt any four questions from Section B. The intended marks for questions or parts of questions are given in brackets [ ]. SECTION A (40 marks) (Attempt all questions from this section) Question 1 Choose one correct answer to the questions from the given options: i. ii. iii. iv. [15] If the molecular formula of an organic compound is C10H18, it is a) Alkene b) Alkyne c) Alkane d) Not a hydrocarbon Which of the following statements is correct regarding HCl a) It is covalent both in aqueous solution and in gaseous state. b) It is covalent in the gaseous state but ionic in aqueous solution. c) It is ionic both in gaseous state and in aqueous solution. d) It can not be liquified. A gas released upon treating Zn with dil. Nitric acid a) Hydrogen b) Nitric oxide c) Nitrogen dioxide d) Nitrous oxide In the given equation identify the role played by conc. sulphuric acid C+2H2SO4 CO2+2H2O+2SO2 a) Non volatile acid b) Reducing agent c) Dehydrating agent

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