JEE Main Chemistry Test- 7 - JEE MCQ

reacts with concetrated HCl to produce

X_eF₄ is prepared by heating Xe and F₂ at 400^oC in the ratio of

Which of the following polymer type is not classified on the basis of its application and properties?

On passing electric current through moten AlCl₃, 11.2 litre of Cl₂ is liberated at N.T.P. at anode. The quantity of aluminium deposited at cathode in g will be :- (At. wt. of Al = 27)

How many of the following are condensation copolymers ?
Nylon-6,   nylon-66,   Dacron,  glyptal,   buna-S,  ABS,  neoprene,  PHBV,  perlon-U.

A 250.0 ml sample of a 0.20 M Cr³⁺ is electrolyzed with a current of 96.5 A , so as to deposit Cr. If the remaining [Cr³⁺] is 0.1M, the time taken (in sec.) in the process.

How many statements are correct in the following - 
(a) Reduction potential of Pb²⁺ is more than Zn²⁺
(b) Mercury cell is an example of primary cell 
(c) Hydrogenation of ethene (C₂H₄) is a first order reaction 
(d) order of wavelength γ-rays < X-ray < IR 
(e) Molal elevation constant (K_b) of ethanol is more than carbon tetrachloride (CCl₄)
(f) Sols of starch, gum, gelatin are postively charged. 
(g) In coagulation of positive sol, the flocculating power is in order 
: [Fe(CN)₆]^–4 > PO₄^–3 > SO₄^–2 > Cl^–
(h) In Rhombohedral unit cell : a = b  = c

Find out the ratio of incorrect and correct statements about H₂O₂ among the following?
1. In the pure state H₂O₂ is almost colorless (very pale blue)
2. Hydrogen peroxide has non planar structure in both gas phase & solid phase
3. 2-ethylanthraquinol react with water to give H₂O₂
4. H₂O₂ is used in pollution control
5. Dihedral angle of H₂O₂ is larger in gas phase compared to that in solid phase