JEE Main 2022 (Online) 24th June Morning Shift | Some Basic Concepts of Chemistry Question 54 | Chemistry

JEE Main 2022 (Online) 24th June Morning Shift

MCQ (Single Correct Answer)

-1

If a rocket runs on a fuel (C₁₅H₃₀) and liquid oxygen, the weight of oxygen required and CO₂ released for every litre of fuel respectively are :

(Given : density of the fuel is 0.756 g/mL)

1188 g and 1296 g

2376 g and 2592 g

2592 g and 2376 g

3429 g and 3142 g

JEE Main 2021 (Online) 16th March Evening Shift

MCQ (Single Correct Answer)

-1

Fex₂ and Fey₃ are known when x and y are :

x = F, Cl, Br, I and y = F, Cl, Br, I

x = F, Cl, Br and y = F, Cl, Br, I

x = F, Cl, Br, I and y = F, Cl, Br

x = Cl, Br, I and y = F, Cl, Br, I

JEE Main 2021 (Online) 25th February Morning Shift

MCQ (Single Correct Answer)

-1

Complete combustion of 1.80 g of an oxygen containing compound (C_xH_yO_z) gave 2.64 g of CO₂ and 1.08 g of H₂O. The percentage of oxygen in the organic compound is :

51.63

50.33

63.53

53.33

JEE Main 2020 (Online) 6th September Evening Slot

MCQ (Single Correct Answer)

-1

The average molar mass of chlorine is 35.5 g mol^–1. The ratio of ³⁵Cl to ³⁷Cl in naturally occuring chlorine is close to :

1 : 1

2 : 1

3 : 1

4 : 1

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