New chat PYQ Library Doubts Rank report

Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →

Chemistry · 2020 · 7 Jan · Shift 1

22 questions from this JEE Main paper

Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.

PYQ Library
JEE Main
Papers
2020 · 7 Jan · Shift 1
Chemistry

Chemistry · 2020 · 7 Jan · Shift 1

22 questions from this JEE Main paper

Chemical Bonding and Molecular Structure3 questions Thermodynamics1 questions Chemical Kinetics and Nuclear Chemistry1 questions Ionic Equilibrium1 questions Structure of Atom1 questions Aldehydes Ketones and Carboxylic Acids1 questions Electrochemistry1 questions Compounds Containing Nitrogen1 questions Hydrocarbons1 questions Some Basic Concepts of Chemistry1 questions Biomolecules1 questions Coordination Compounds2 questions Periodic Table and Periodicity1 questions Haloalkanes and Haloarenes1 questions Salt Analysis1 questions Solutions1 questions Basics of Organic Chemistry1 questions Redox Reactions1 questions D and F Block Elements1 questions

Q1.Chlorine reacts with hot and concentrated NaOH and produces compounds (X) and (Y). Compound (X) gives white precipitate with silver nitrate solution. The average bond order between CI and O atoms in (Y) is.
Chemistry · Chemical Bonding and Molecular Structure · Numerical
Q2.For the reaction : A( $l$ ) $\to$ 2B(g) $Δ U = 2.1 k c a l, Δ S = 20 c a l K^{- 1}$ at 300 K Hence $Δ$ G in kcal is :
Chemistry · Thermodynamics · Numerical
Q3.During the nuclear explosion, one of the products is 90Sr with half life of 6.93 years. If 1 $μ$ g of 90Sr was absorbed in the bones of newly born baby in placed of Ca, how much time, in years, is required to reduce much time, in year,…
Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
Q4.Two solutions, A and B, each of 100L was made by dissolving 4g of $N a O H$ and 9.8 g of $H_{2} S O_{4}$ in water, respectively. The pH of the resultant solution obtained from mixing 40L of solution A and 10L of solution B is :
Chemistry · Ionic Equilibrium · Numerical
Q5.The number of orbitals associated with quantum number n = 5, ms = + $\frac{1}{2}$ is :
Chemistry · Structure of Atom · MCQ
Q6.What is the product of following reaction ? Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q7.Given that the standard potentials (Eo) of $C u^{2 +}$ / $C u$ and $C u^{+}$ / $C u$ are 0.34 V and 0.522 V respectively, the Eo of $C u^{2 +}$ / $C u^{+}$ :
Chemistry · Electrochemistry · MCQ
Q8.Consider the following reaction : The product 'X' is used : Includes diagram
Chemistry · Compounds Containing Nitrogen · MCQ
Q9.Consider the following reaction : $(C H_{3})_{3} C C H (O H) C H_{3} co n c . H_{2} S O_{4} (C H_{3})_{2} C H C H (B r) C H_{3} a l c . K O H (C H_{3})_{2} C H C H (B r) C H_{3} (C H_{3})_{3} O^{Θ} K^{\oplus} (C H_{3})_{2} O H ∣ C - C H_{2} - C H O Δ$ …
Chemistry · Hydrocarbons · MCQ
Q10.The dipole of $C C l_{4}$ , $C H C l_{3}$ and $C H_{4}$ are in the order :
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q11.Amongst the following statements, that which was not proposed by Dalton was :
Chemistry · Some Basic Concepts of Chemistry · MCQ
Q12.Match the following : (i) Riboflavin (a) Beriberi (ii) Thiamine (b) Scurvy (iii) Pyridoxine (c) Cheliosis (iv) Ascorbic acid (d) Convulsions
Chemistry · Biomolecules · MCQ
Q13.The relative strength of interionic/intermolecular forces in decreasing order is :
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q14.The IUPAC name of complex $[P t (N H_{3})_{2} C l (N H_{2} C H_{3})] C l$ is:
Chemistry · Coordination Compounds · MCQ
Q15.The electron gain enthalpy (in KJ/mol) of fluorine, chlorine, bromine and iodine, respectively are:
Chemistry · Periodic Table and Periodicity · MCQ
Q16.1- methyl ethylene oxide when treated with an excess of HBr produces :
Chemistry · Haloalkanes and Haloarenes · MCQ
Q17.A solution of m-chloronailimne, m-chlorophenol and m-chlorobenzoic acid in ethyal acetate was extracted initially with a saturated solution of $N a H C O_{3}$ to give fraction A. The left over organic phase was extracted with dilute NaoH…
Chemistry · Salt Analysis · MCQ
Q18.At 35oC, the vapour pressure of $C S_{2}$ is 512 mm. Hg and that of acetone is 344 mm Hg. A solution of $C S_{2}$ in acetone has a total vapour pressure of 600 mm Hg. The false statement amongst the following is :
Chemistry · Solutions · MCQ
Q19.The increasing order to Pkb for the following compounds will be : Includes diagram
Chemistry · Basics of Organic Chemistry · MCQ
Q20.Oxidation number of potassium in $K_{2} O$ . $K_{2} O_{2}$ and $K O_{2}$ respectively is :
Chemistry · Redox Reactions · MCQ
Q21.The theory that can completely/properly explain the nature of bonding in $[N i (C o)_{4}]$ is :
Chemistry · Coordination Compounds · MCQ
Q22.The atomic radius of Ag is closed to :
Chemistry · D and F Block Elements · MCQ