Identify among the following which has Lowest energy of electron in 1st shell.

Related Mcqs:

1. When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is______________?

   A. 0.33 nm B. 0.34 nm C. 0.35 nm D. 0.36 nm...

2. The maximum number of electron in a sub shell with ? = 3fs______________?

   A. 6 B. 10 C. 14 D. 18...

3. Quantum number which tells the energy of electron is________________?

   A. n B. 1 C. m D. s...

4. Energy required to remove electron from an atom______________?

   A. Ionization potential B. Electronegativity C. Electron affinity D. Activation energy...

5. An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

   A. Group IA B. Group IB C. Group VIIA D. Group VIII...

6. Which of the following has lowest lattice energy?

   A. LiF B. NaCl C. KBr D. CsI Submitted by: Abdul Basit Lashari...

7. Identify the Lucas reagent among the following

   A.  Conc. HCl & Anhydrous ZnCl2     B.  Dil. HCl & hydrated ZnCl2 C.  Conc. HNO3 & Anhydrous ZnCl2 D. Conc. HNO3 & Anhydrous MgCl2 Submitted by: Aamir khan Hullio...

8. Identify the Molecular mass for Glucose (C6H12O6) among the following.

   A. 190amu B. 188amu C. 180amu D. 98amu Submitted by: Aamir khan Hullio...

9. Identify among the following which is not the unsaturated hydrocarbon.

   A. C4H6 B. C5H12 C. C3H4 D. C6H10 Submitted by: Aamir khan Hullio...

10. Identify among the following elements that does NOT belong to VIIA group

    A. Cl B. F C. N   D. Br Submitted by: Aamir khan Hullio...