WEEKLY TEST

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CHEMISTRY
XI JEE NEET TYPE SAMPLE
Subjects: Mathematics
Class:X
FIITJEE BAHRAIN JEE NEET SAMPLE

NEET TYPE

1. The period number in the long form of the periodic table is equal to
(1) Magnetic quantum number of any element of the period.
(2) Atomic number of any element of the period.
(3) Maximum Principal quantum number of any element of the period.
(4) Maximum Azimuthal quantum number of any element of the period.
2. An element having electronic configuration 1s2 2s2 2p6 3s2 3p6 4s1 belongs to the
(1) group 11 (2) group 2 (3) group 18 (4) group 1
3. Electronic configuration of most electronegative element is
(1) 1s2 2s2 2p4 3s1 (2) 1s2 2s2 2p6 3s2 3p5 (3) 1s2 2s2 2p5 (4) 1s2 2s2 2p6 3s2 3p6
4. Consider the ground state of Cr atom (X = 24). The number of electrons with the azimuthal quantum
numbers, l = 1 and 2 are, respectively
(1) 16 and 4 (2) 12 and 5 (3) 12 and 4 (4) 16 and 5
5. The maximum value of charge/mass ratio is obtained for
(1) electrons (2) neutrons (3) protons (4) alpha particles
6. The maximum number of spectral lines obtained when the electrons of a sample make a transition from n =
4 to n = 1 are
(1) 10 (2) 4 (3) 6 (4) 2
7. Which orbital of carbon can absorb photon but not emit it?
(1) 1 s (2) 2 s (3) 3 p (4) 2 p
8. Given that the abundances of isotopes 54Fe, 56Fe and 57Fe are 5%, 90% and 5%, respectively, the atomic
mass of Fe is
(1) 55.85 (2) 55.95 (3) 55.75 (4) 56.05
9. Number of molecules in 2.24 ml H2 gas is
(1) 6.022 x 1029 (2) 6.022 x 1023 (3) 6.022 x 1019 (4) 6.022 x 1022
10. The number of molecules present in 224 ml of water are
(1) 6.022 x 1023 (2) 6.022 x 1024 (3) 7.5 x 1027 (4) 7.5 x 1024
11. An element with more negative electron gain enthalpy in the following pair
i) O or F ii) O or S
(1) O and S (2) F and O (3) O and O (4) F and S

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12. The correct statement among the following is

(1) the first ionization potential of Al is less than the first ionization potential of Si
(2) the second ionization potential of Mg is greater than the second ionization potential of Na
(3) the first ionization potential of Na is greater than the first ionization potential of Mg
(4) the ionic radii of Mg2+ is greater than that of Na+.
13. The energy of a photon is given as 3.03 x 10-19 J. Then the wavelength of the photon is
(1) 65.6 nm (2) 656 nm (3) 0.656 nm (4) 6.56 nm
14. The atom having the maximum electron gain enthalpy is
(1) F (2) Na (3) Cl (4) K
15. The wavelength of the radiation emitted, when in a hydrogen atom electron falls from infinity to
stationary state 1, would be (Rydberg constant = 1.097×107 m–1)
(1) 406 nm (2) 192 nm (3) 91 nm (4) 9.1×10–8 nm
16. A gas mixture of 3 litres of propane (C3H8) and butane (C4H10) on complete combustion at 25° C produced
10 litre CO2. Find out the composition of gas mixture (Propane : Butane)
(1) 2 : 1 (2) 1 : 2 (3) 1.5 : 1.5 (4) 0.5 : 2.5
17. Convert a 2.5 M (molar) solution of NaCl to molality assuming the density of the solution is 1.05 g/mL.
(1) 2.38 mol/kg (2) 2.76 mol/kg (3) 1.90 mol/kg (4) 1.38 mol/L
18. The energy of electron in the third Bohr orbit is x times that of the second orbit. The value of x for He+ is
(1) 4/9 (2) 16/9 (3) 64/9 (4) 9/16
19. If a proton and alpha particle are accelerated through the same potential difference, the ratio of de-Broglie
wavelengths proton and alpha is
(1) 3 (2) 2 √2 (3) 1 (4) 2
20. The number of electrons in l = 2 for an atom having atomic number 24 is
(1) 5 (2) 10 (3) 30 (4) 20

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JEE TYPE
1. The work function of a photoelectric material is 3.3 eV. Its threshold frequency will be

(A) 0.87  1015 Hz (B) 15  1033 Hz

(C) 8  1010 Hz (D) 4  1011 Hz

2. Atoms consist of electrons, protons and neutrons. If the mass attributed to neutron were halved and that attributed to
C12
the electrons were doubled, the atomic mass of 6 would be approximately:
(A) Same (B) Doubled
(C) Halved (D) Reduced by 25%

3. If the shortest wavelength of H atom in Lyman series is x, then longest wave length in Balmer series of He + is:
9x 36x
(A) (B)
5 5
x 5x
(C) (D)
4 9

4. The wavelength of an electron moving with a velocity of 2.05 x 107 m/s would be
(A) 4.6510-12 J (B) 2.3410-11 J
(C) 6.4310-11 J (D) 3.5510-11 J

5. The speed of the electron in the 1st orbit of the hydrogen atom in the ground state is:
[c is the velocity of light]
c c
(A) (B)
1.37 137
c c
(C) (D)
13.7 1370
6. The period and group of the element with the electronic configuration as 1s22p22p63s23p6 3d6 4s2 will be

(A) 3rd period, 4th group (B) 4th period, 8th group

(C) 3rd period, 16th group (D) 4th period, 6th group

7. Chlorine has a higher electron gain enthalpy than Fluorine because

(A) Chlorine has more protons.
(B) Fluorine has smaller size thus increased inter electronic repulsions
(C) Chlorine needs only one electron to obtain an octet
(D) Both Fluorine and Chlorine are halogens.

8. The radius of Bohr’s first orbit in H atom is 0.053 nm. The radius of fourth orbit in H atom would be:
(A) 0.0265 nm (B) 0.848 nm
(C) 0.1060 nm (D) 0.2120 nm

9. In which of the following the atoms are arranged in increasing order of atomic radii?
(A) Na, Li, K (B) K, Li, Na
(C) Na, Mg, Al (D) Al, Mg, Na

10. The 2nd I.P. values of Na, Mg, Al and Si are in the following decreasing order
(A) S2>Al>Mg>Na (B) Na>Al>Si>Mg
(C) Al>Si>Mg>Na (D) Na>Si>Al>Mg

FIITJEE INDIA WLL, Kingdom of Bahrain, Ph: 77153535, Email; crp.bahrain@fiitjee.com

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11. The position of element “X” (at. No-24) in the periodic table is as follows
(A) Group 6, Pd-4 and block-d (B) Group 4, Pd -4 and block-d
(C) Group 5, Pd-4 and block-d (D) Group 8, Pd-4 and block -s
12. An aqueous solution of 6.3g oxalic acid dihydrate is made upto 250 mL. The volume of 0.2 M NaOH required to
completely neutralise 10 mL of this solution is
(A) 40 mL (B) 20 mL
(C) 10 mL (D) 4 mL

13. A self contained breathing apparatus uses KO2, to convert the carbondioxide and water in exhaled air into oxygen, as
shown by the equation.
4KO2(s)+2H2O(g)+4CO2(g)  4KHCO3(s)+3O2(g)
How many molecules of oxygen gas will be produced from 0.0468g of carbondioxide that is exhaled in a typical breath?
(A) 4.8 x 1020 (B) 6.4 x 1020
(C) 8.5 x 1020 (D) 1.9 x 1021

14. The number of radial nodes and angular nodes in 5dxy respectively are
(A) 2 and 2 (B) 2 and 3
(C) 3 and 2 (D) 4 and 2
15. The density of 1 M solution of HCl is 1.0585 g/mL. The molality of the solution is:
(A) 1.0585 (B) 1.0
(C) 0.10 (D) 0.0585

FIITJEE INDIA WLL, Kingdom of Bahrain, Ph: 77153535, Email; crp.bahrain@fiitjee.com