Hydrogen – Chemistry | NEET Online Mock Test Leave a Comment / Blog / By admin Online Mock Test Description Mock TestHydrogen ExamNEET Medical TestSubjectChemistry Marks100No. Questions50 QuestionsTime50 Minutes 1 Sorry! Time up Hydrogen - NEET (Chemistry) Best of Luck! 1 / 28 By adding which of the following, the permanent hardness of water can be removed? Sodalime Sodamide Washing soda Baking soda 2 / 28 Select the statement that is correctH2O2 is less viscous than waterDipole moment of H2O2 is less than waterBoiling point of H2O2 is more than that of waterH2O2 is less acidic that water 1 2 3 4 3 / 28 Select the one that is formed when CaC2 reacts with heavy waterCaD2Ca2D2OCD2C2D2 1 2 3 4 4 / 28 Select from the following statements that are correct Nuclei with parallel spin are para-hydrogen At room temperature, ordinary dihydrogen contain 75% of para hydrogen It is possible to obtain pure para-hydrogen At low temperature percentage of para hydrogen decreases than ortho hydrogen 5 / 28 The degree of hardness of a given sample of hard water is 40 ppm. If the entire hardness is due to MgSO4, find the amount of MgSO4 present per kg of water 50 mg 60 mg 48 mg 58 mg 6 / 28 Select from the following reactions where H2O2 acts as an oxidising agentCl2 + H2O2 → 2HCI + O2KMnO4 + H2O2 → KOH + MnO2 + H2O + O2NaClO + H2O2 → NaCl + H2O + O2PbS + H2O2 → PbSO4 + H2O 1 2 3 4 7 / 28 In Bosch's process which gas is utilised for the production of hydrogen gas Producer gas Water gas Coal gas Any of these 8 / 28 Select the correct match of Column-l to Column-IIColumn-1 Column-IIA) Covalent hydride (i) NaHB) Interstitial hydride (ii) TiH4C) Ionic hydride (iii) AIH3D) Electron deficient hydride (iv) SiH4 A(iv), B(ii), C(i), D(ii) A(iv), B(i), C(ii), D(iii) A(i), B(ii), C(iv), D(iii) A(iv), B(ii), C(i), D(iii) 9 / 28 In Clark's method for removal of hardness which of the following compounds is used?Ca(OH)2Na6P6O18Na2CO3All of the above 1 2 3 4 10 / 28 Which of the following organic compounds when reacts with O2(air) gives H2O2? 2-ethylanthraquinol 2-methylanthraquinol 1-ethylanthraquinol 1-methylanthraquinol 11 / 28 Ortho H2 and para H2 differ in Atomic number Mass number Nuclear spin Both (1) and (2) 12 / 28 Which of the following is not true? Temporary hardness is due to the presence of bicarbonates of calcium and magnesium in water Permanent hardness is due to the presence of soluble Ca and Mg sulphates and chlorides Permanent hardness can be removed by washing soda method Chloride ions can be removed by calgon method 13 / 28 The structure of H2O2 is Planar Non-planar Spherical Linear 14 / 28 Incorrect statement regarding ortho hydrogen is/are Two nuclei have parallel spin Ortho hydrogen has higher internal energy than para Ortho hydrogen nearly does not exist in a H₂ gas sample at absolute zero Para hydrogen possesses magnetic moment 15 / 28 If 2-litre water sample contains 0.001 mole MgSO4, hardness of the water will be 5 ppm 10 ppm 50 ppm 100 ppm 16 / 28 Number of moles of KMnO4 required to react with 1 mole of SnCl2 in acidic medium: 1 3/5 2/5 4/5 17 / 28 Choose the incorrect statementH2O2 is obtained by Merck's processWhen hot water is passed on sodium peroxide, H2O2 is obtainedH2O2 is obtained by auto-oxidation of 2-ethyl anthraquinolH2O2 is prepared by reaction of hydrated BaO2 with H2SO4 at 0°C 1 2 3 4 18 / 28 Hydrogen can be prepared by the action of dil H2SO4 on Copper Zn Silver Mercury 19 / 28 Ortho and para hydrogen have Identical chemical properties but different physical properties Identical physical and chemical properties Identical physical properties but different chemical properties Different physical and chemical properties 20 / 28 Which of the following is interstitial hydride?CaH2LaH3PH3NaH 1 2 3 4 21 / 28 Which of the following is an example of hydrogen bonding hydrates?[Fe(H2O)6)]+3[Cr(H2O)6]+3[Zn(H2O)6]2+CuSO4.5H2O 1 2 3 4 22 / 28 The volume strength of 2.5 (N) H2O2 solution is : 10 12 14 16 23 / 28 H2O2 removes the black stain of old oil paintings due to the action of H2S gas by:Oxidising Pb to PbO2Reducing PbCO3 to PbOxidising Pb to PbSO4Oxidising PbS to PbSO4 1 2 3 4 24 / 28 Some statements about H2O2 are given below:I. 20 volume H2O2 solution has a strength of about 6.1II. It is used as a mild disinfectantIII. It can oxidise hydrazine into N2(g)Which of the above statements is correct: I, II and III II and III only I and II only I and III only 25 / 28 Which of the following statements is incorrect? Metallic hydrides are less dense than parent metal Metallic hydrides conduct heat and electricity lonic hydrides give hydrogen with water lonic hydrides are good conductor of electricity in solid state 26 / 28 200 ml of 2(N) KMnO4 solution is decolourised by 'V' ml '20 volume' H2O2 solution is acidic medium Find 'V': 200 ml 112 ml 336 ml 224 ml 27 / 28 H2O2 is reduced by :O3PbO2KlKMnO4 (Acidic medium) 1 2 3 4 28 / 28 H2O2 can be used to bleach hairs. A girl needs 2.24 litre O2 gas at 1 atm and 273 K to bleach her hair. How much volume of 5.6V H2O2 solution should be used by her ? 200 ml 300 ml 400 ml 500 ml Your score isThe average score is 0% 0% Restart quiz next chapter : The s-block elements