CHEMISTRY CHEMICAL BONDING QUIZ-7
Dear Readers,
The one subject in NEET which is candidates who can easily attain good marks is Chemistry. That's the reason, often, one doesn’t pay notice and choose to compromise it. But if one wants to rank above others, the tip is to be thorough with NEET chemistry concepts. The understanding of reactions and definite basic understanding is what requires major attention in Chemistry but once done it only gets simpler from there. The main focus on the to-do list should be on getting a hang of the NCERT syllabus of NEET chemistry..
Q1. Which species has the maximum number of lone pair of electrons on the central atom?
Solution
Q2.An atom with atomic number 20 is most likely to combine chemically with the atom whose atomic number is:
Solution
Element with atomic number 20 is metal (Ca);
Element with atomic number 20 is metal (Ca);
it will combine with non-metal.
Q3. Which contains a coordinate and covalent bond?
Q4. Which of the following does not contain coordinate bond?
Solution
Q5.In compound X, all the bond angles are exactly 10928′ , X is:
Solution
CCl4 has sp3-hybridization giving regular tetrahedron geometry.
CCl4 has sp3-hybridization giving regular tetrahedron geometry.
In others the geometry is little distorted inspite of sp3-hybridization due to different atoms on the vertices of tetrahedron.
Q6. In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed?
Solution
Q7.Which has sp2-hybridisation?
Solution
SO2 has sp2-hybridization.
SO2 has sp2-hybridization.
Q8.Hydrogen fluoride is a liquid unlike other hydrogen halides because:
Solution
A reason for given fact.
A reason for given fact.
Q9.Iron is tougher than sodium because:
Solution
Stronger is metallic bonding (Fe has d-subshell), more is hardness.
Stronger is metallic bonding (Fe has d-subshell), more is hardness.
Q10. The value of n in the molecular formula BenAI2 Si6 O18 is
Solution
For BenAI2 Si6 O18
For BenAI2 Si6 O18
2n + 6 + 24 – 36 = 0
n = 3
