JEE Main 2018 (Online) 16th April Morning Slot | Some Basic Concepts of Chemistry Question 132 | Chemistry

JEE Main 2018 (Online) 16th April Morning Slot

MCQ (Single Correct Answer)

-1

An unknown chlorohydrocarbon has 3.55% of chlorine. If each molecule of the hydrocarbon has one chlorine atom only; chlorine atoms present in 1 g of chlorohydrocarbon are :
(Atomic wt. of Cl = 35.5 u; Avogadro constant = 6.023 $$ \times $$ 10²³ mol^-1)

6.023 $$ \times $$ 10²⁰

6.023 $$ \times $$ 10⁹

6.023 $$ \times $$ 10²¹

6.023 $$ \times $$ 10²³

JEE Main 2018 (Offline)

MCQ (Single Correct Answer)

-1

The ratio of mass percent of C and H of an organic compound (C_XH_YO_Z) is 6 : 1. If one molecule of the above compound (C_XH_YO_Z) contains half as much oxygen as required to burn one molecule of compound C_XH_Y completely to CO₂ and H₂O. The empirical formula of compound C_XH_YO_Z is

C₂H₄O₃

C₃H₆O₃

C₂H₄O

C₃H₄O₂

JEE Main 2018 (Online) 15th April Morning Slot

MCQ (Single Correct Answer)

-1

A sample of $$NaCl{O_3}$$ is converted by heat to $$NaCl$$ with a loss of $$0.16$$ $$g$$ of oxygen. The residue is dissolved in water and precipitated as $$AgCl.$$ The mass of $$AgCl$$ (in $$g$$) obtained will be : (Given : Molar mass of $$AgCl=143.5$$ $$g$$ $$mo{l^{ - 1}}$$)

$$0.35$$

$$0.41$$

$$0.48$$

$$0.54$$

JEE Main 2017 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

What quantity (in mL) of a 45% acid solution of a mono-protic strong acid must be mixed with a 20% solution of the same acid to produce 800 mL of a 29.875% acid solution ?

320

325

316

330

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