3. Fill in the blanks with the correct form of the verbs given in the brackets.
a. The boys ____________in the school cricket team. (play)
b. Mohan and his brother often_________. (fight)
Answers
Answer:
join
Explanation:
What are the total number of orbitals with principle quantum number 3? Justify (2)
(ii) Differentiate between (3)
(a) Molecule of element and molecule of compound
(b) Diatomic molecule and poly atomic molecule
(iii) What is the position of followings in the periodic table, also give one example of each
(a) Alkali metals (b) Alkaline earth metals (2)
(c) Halogens (d) Noble gases
(iv) Give the example of each (2)
(a) A monoatomic cation (b) A mono atomic anion
(c) A poly atomic cation (d) A poly atomic anion
(v) Which of the following species has the most unpaired electrons? Justify (2)
S
+
, S or S
-
(vi) Identify the sub shell in which electrons with the following quantum numbers are
found?
(a) n = 2, l = 1 (b) n = 4, l = 2 (c) n = 6, l = 0 (3)
(vii) How you prove with experiment that electron has a spin? (2)
(viii) Justify that Al2O3 is amphoteric oxide
Answer:
a.play. b.fights.
Explanation:
this is the answer.