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Q. What is the difference between molarity and normality?

Molarity based on vol. Of solvent in 100litre of solu. While normality is gram molecular mass

Compound X will be 

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

 

3

 

Find the compound "X" which give the following test:

Neutral FeCl3  -Ve

Fehling Solution  -ve

Iodoform reaction  +ve

Grignard reagent  +ve

 

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

 

1

The major product formed in the reaction given below will be:

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

  Fate of aliphatic diazonium ion - The diazonium ions of aliphatic amines are very unstable and produces carbocation immediately, which can produce different products.  - wherein      Fate of aromatic diazonium ion - Diazonium salts of aromatic amines are comparatively more stable and evolve nitrogen only on heating.These diazonium salts can be isolated at low temperatures. -             As...

50 mL of 0.5 M oxalic acid is needed to neutralize 25 mL of sodium hydroxide solution. The amount of NaOH in 50 mL of the given sodium hydroxide solution is :

  • Option 1)

    20 g

  • Option 2)

    4 g

  • Option 3)

    10 g

  • Option 4)

    40 g

 
  Molar Mass - The mass of one mole of a substance in grams is called its molar mass. - wherein  Molar mass of water = 18 g mol-1       Molarity -  Molarity (M) = (Number of moles of solute)/(volume of solution in litres)   - wherein It is defined as the number of moles of the solute in 1 litre of the solution.       Stoichiometry - Stoichiometry deals with measurements of reactants and...

Match the catalysts (Column I) with products (Column II).

             ColumnI                                          Column II

            Catalyst                                               Product

      (A)   V_{2}O_{5}                                          (i) Polyethylene     

      (B)  TiCl_{4}/Al(Me)_{3}                      (ii) ethanal

      (C)   PdCl_{2}                                       (iii)   H_{2}SO_{4}

      (D) Iron\; Oxide                               (iv)   NH_{3}

 

 

  • Option 1)

     (A)-(iii); (B)-(iv);(C)-(i);(D)-(ii)

  • Option 2)

      (A)-(ii);(B)-(iii);(C)-(i);(D)-(iv)

  • Option 3)

     (A)-(iii);(B)-(i);(C)-(ii);(D)-(iv)

  • Option 4)

     (A)-(iv);(B)-(iii);(C)-(ii);(D)-(i)

 
      Contact Process - In this process SO2 obtained by burning of S or iron pyrites which is catalytically oxidised to  in presence of timely divided Pt or  as catalyst -       High density Polythene (HDP) - -  Polymerization of ethene in a hydrocarbon solvent under low pressure in presence of triethylaluminium and titanium tetrachloride (Ziegier. natta catalyst) -  Chain growth,...

The increasing order of nucleophilicity of the following nucleophilies is :

(a)\; CH_{3}CO_{2}^{\ominus }

(b)\; H_{2}O

(c)\; CH_{3}SO_{3}^{\ominus }

(d)\;\overset{\ominus }{O}H

  • Option 1)

    (a)< (d)< (c)< (b)

  • Option 2)

     (b)< (c)< (d)< (a)

  • Option 3)

     (d)< (a)< (c)< (b)

  • Option 4)

    (b)< (c)< (a)< (d)

    Nucleophile - Those e- rich  chemical species having capacity to attack e-deficient portion of substrate. - wherein Nucleophile must have complete octet and atleast one lone pair                      Order of Nucleophilicity is                                                                                                                                                   Both are...

The correct option among the following is :

  • Option 1)

    Colloidal medicines are more effective because they have small surface area.

  • Option 2)

    Addition of alum to water makes it unfit for drinking .

  • Option 3)

    Colloidal particles in lyophobic sols can be precipitated by electrophoresis.

  • Option 4)

     Brownian motion in colloidal solution is faster if the viscosity of the solution is very high.

    Properties of Colloidal Solutions - Coagulation or Precipitation - wherein The stability of the lyophobic sols is due to the presence of charge on colloidal particles. If somehow the charge is removed the particles will come nearer to each other and settle down under gravity.       Properties of Colloidal Solutions - Electrophoresis - wherein The existance of charge on colloidal...

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:

 

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

    Coupling reaction of aromatic diazonium - Diazonium ions of aromatic amines also undergo coupling reaction with aromatic rings having a strong activating group to form diazo compounds. - wherein      Option 1)Option 2)Option 3)Option 4)

The metal that gives hydrogen gas upon treatment with both acid as well as base is :

  • Option 1)

    zinc

  • Option 2)

    iron

  • Option 3)

    mercury

  • Option 4)

    magnesium

 
    Oxidation states - Transition elements have a variety of oxidation states but the common oxidation state is +2 for 3d metals.   -     zinc is the metal that gives hydrogen gas on reacting with both acid & base (i)  (ii)  Option (I) is correct Option 1) zinc Option 2) iron Option 3) mercury Option 4) magnesium

The major product of the following reaction is 

 

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

  Side chain chlorination followed by hydrolysis - The halogenation/chlorination of Toluene can occur in 2 methods of electrophilic substitution: The Chlorine either substitutes itself with a Hydrogen atom in the phenyl ring, or it substitutes with a Hydrogen atom in the Methyl group (side chain reaction) to form variants of Chloromethylbenzene/Benzyl Chloride (C6H5CH2Cl).   Electrophilic...

The major product in the following reaction is:

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

      Basicity of Aromatic Amines - The unshared pair of electrons at the nitrogen atom is in resonance with the benzene ring and hence not fully available for donation as in the case of aniline. -       Nature of group and basicity - Electron withdrawing groups ( -I and -M  effect ) decreases basicity, whereas Electron releasing groups ( +I and +M  effect ) increases basicity. -...

Diborane (B_{2}H_{6}) reacts independenttly with O_{2}  and H_{2}O to produce, respectively:

 

  • Option 1)

    H_{3}BO_{3}\; and\; B_{2}O_{3}

  • Option 2)

    B_{2}O_{3}\; and\; [BH_{4}]^{-}

  • Option 3)

    B_{2}O_{3}\; and\;H_{3}BO_{3}

     

  • Option 4)

    HBO_{2}\; and\;H_{3}BO_{3}

    Diborane - Simplest boron hydride, dimer of BH3, colourless and highly toxic gas - wherein Hybridisation of boron in diborane is sp3       Preparation of diborane in laboratory - By the oxidation of sodium borohydride with I2 - wherein       Preparation of diborane from boron halides - -       Oxides of boron family - Acidity decreases and basicity increases down the group General...

Which of the following statements is not true about sucrose ?

  • Option 1)

    It is a non reducing sugar

  • Option 2)

    The glycosidic linkage is present between C_{1} of \alpha -glucose and C_{1} of \beta -fructose

  • Option 3)

    It is also named as invert sugar

  • Option 4)

    On hydrolysis, it produces glucose and fructose

a) Sucrose is non - reducing sugar b)              . C)  It is invert sugar d) Sucrose  So option (b) is incorrect     it has    Option 1)It is a non reducing sugarOption 2)The glycosidic linkage is present between  of  and  of Option 3)It is also named as invert sugarOption 4)On hydrolysis, it produces glucose and fructose

The compound that inhibits the growth of tumors is:

  • Option 1)

    trans-\left [ Pt\left ( Cl \right )_{2} \left ( NH_{3} \right )_{2} \right ]

  • Option 2)

    cis-\left [ Pd\left ( Cl \right )_{2} \left ( NH_{3} \right )_{2} \right ]

  • Option 3)

    cis-\left [ Pt\left ( Cl \right )_{2} \left ( NH_{3} \right )_{2} \right ]

  • Option 4)

    trans-\left [ Pd\left ( Cl \right )_{2} \left ( NH_{3} \right )_{2} \right ]

 
  Application of coordination compounds - Coordination compounds are used for many applications: Extraction process of gold and silver. Used as catalyst in many industrial processes. Purification of metals. Hardness of water.(EDTA) EDTA is used in treatment of lead poisoning. Chelate therapy (removal of toxic proportion of metals in the body) Platinum compounds inhibit the growth...

Magnesium powder burns in air to give :

  • Option 1)

    Mg(NO_{3})_{2}\; and\; Mg_{3}N_{2}          

  • Option 2)

    MgO \; and\; Mg_{3}N_{2}

  • Option 3)

    MgO\; only

  • Option 4)

    MgO\; and \; Mg(NO_{3})2

  Reactivity of alkaline earth metals with O2 - Increases down the group - wherein Due to increase in elecropositive character     Option 1)          Option 2)Option 3)Option 4)

The major product of the following reaction is :

CH_{3}C\equiv CH\xrightarrow[(ii)\; DI]{(i)\; DCl\left ( 1\; equiv. \right )}

  • Option 1)

     CH_{3}CD(I)CHD(Cl)                

  • Option 2)

    CH_{3}CD(Cl)CHD(I)

  • Option 3)

    CH_{3}CD_{2}CH(Cl)(I)

  • Option 4)

    CH_{3}C(I)(Cl)CHD_{_{2}}

  Markovnikov's Rule - Negative part of the reagent attacks on that carbon of multiple bond which have less number of   hydrogen atoms. - wherein     Addition of Hydrogen halide on alkyne - Reaction takes place according to Markovnikov's rule. - wherein                          Markonikov rule                                               Option 1)                 Option 2)Option 3)Option 4)

0.27 g of a long chain fatty acid was dissolved in 100 cm3 of hexane. 10 mL of this solution was added dropwise to the surface of water in a round watch glass. Hexane evaporates and a monolayer is formed. The distance from edge to centre of the watch glass is 10 cm. What is the height of the monolayer?

[Density of fatty acid=0.9 g cm-3 , \pi=3]

  • Option 1)

    10-6 m

  • Option 2)

    10-8 m

  • Option 3)

    10-2 m

  • Option 4)

    10-4 m

  Density - Density is a measure of mass per unit  volume. The average density of an object is equals to its total mass divided by its total volume. An object made from a comparatively dense material (such as iron) will have less volume than an object of equal mass made from some less dense substance (such as water). To find the density of any object, we need to know the Mass (grams) of the...

The major product obtained in the following reaction is:

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

    Aldol condensation - Aldehydes and ketones possessing  - hydrogen atom in the presence of dilute alkali undergo self-condensation to form   - hydroxy aldehyde and    - hydroxy ketone. - wherein                  Product  (1) It is aldol conchensation Mechanism is as follows Note:- there in 1 step there will be formation of evolate  Option 1)Option 2)Option 3)Option 4)

The major product of the following reaction is :

CH_{3}CH=CHCO_{2}CH_{3}\xrightarrow{LiAlH_{4}}

  • Option 1)

     CH_{3}CH_{2}CH_{2}CO_{2}CH_{3}          

  • Option 2)

    CH_{3}CH=CHCH_{2}OH

  • Option 3)

    CH_{3}CH_{2}CH_{2}CH_{2}OH

  • Option 4)

     CH_{3}CH_{2}CH_{2}CHO

  Alcohol formation by reduction of esters - Yields two alcohols - wherein      do not reduce alkeneOption 1)           Option 2)Option 3)Option 4) 
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