NTSE SAT Chemistry Papers 09

NTSE SAT Chemistry Papers 09

This is NTSE SAT Chemistry Papers 09 .. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
One mole of magnesium nitride on reaction with excess of water gives:-
  • A
    Two moles of nitric acid
  • B
    Two moles of ammonia
    Correct
  • C
    One mole of nitric acid
  • D
    One mole of ammonia
2
Match the following:- Column – I (A) strongest reducing agent in aqueous solution (B) shows inert pair effect (C) forms peroxide on heating with excess of oxygen (D) used in Photo cells The formula of a compound that can be formed between these two elements is Column – II (i) Thalium (ii) Caesium (iii) Lithium (iv) Sodium
  • A
    A-iii, B-i, C-iv, D-ii
    Correct
  • B
    A-ii, B-iv, C-i, D-iii
  • C
    A-iv, B-ii, C-i, D-iii
  • D
    A-iii, B-ii, C-i, D-iv
3
The oxidation states of sulphure in \(SO_3^{2 - },\,\,{S_2}O_4^{2 - }\,\,and\,\,{S_2}O_6^{2 - }\)follows the order:
  • A
    \({S_2}O_6^{2 - } < {S_2}O_4^{2 - } < SO_3^{2 - }\)
  • B
    \({S_2}O_4^{2 - }\, < SO_3^{2 - } < {S_2}O_6^{2 - }\)
  • C
    \({S_2}O_4^{2 - } < {S_2}O_6^{2 - } < SO_3^{2 - }\)
    Correct
  • D
    \(SO_3^{2 - } < {S_2}O_4^{2 - } < {S_2}O_6^{2 - }\)
4
About \(B{F_3},\,\,P{F_3}\,\,and\,\,Cl{F_3}\)the correct statement is:
  • A
    \(P{F_3}\,\,\,and\,\,Cl{F_3}\)have similar shapes but not \(B{F_3}\)
  • B
    \(B{F_3}\,\,and\,\,P{F_3}\)have similar shapes but not \(Cl{F_3}\)
  • C
    All have different shapes
    Correct
  • D
    All have similar shape
5
Which of the following is represented by general formula \({C_n}{H_{2n + 2}}O\)?
  • A
    Aldehydes only
  • B
    Alchols only
    Correct
  • C
    Both aldehydes and Ketones
  • D
    Both alcohols and ethers
6
About (A) ClOH, (B) KOH, (C) \(BE{\left( {OH} \right)_2}\)the correct statement is:-
  • A
    (B) and (C) are basic, (A) is amphoteric
  • B
    (A) is acidic, (B) is basic, (C) is amphoteric
    Correct
  • C
    (B) and (C) are bases, (A) is acidic
  • D
    All are bases
7
Which of the following is endothermic reaction?
  • A
    \(2{H_2}(g) + {O_2}(g) \to 2{H_2}O(l)\)
  • B
    \(C(s) + {O_2}(g) \to C{O_2}(g)\)
  • C
    \(2C{H_3}OH(l) + 3{O_2}(g) \to 2C{O_2}(g) + 4{H_2}O(l)\)
  • D
    \({N_2}(g) + {O_2}(g) \to 2NO(g)\)
    Correct
8
About (A) \({H_2}{O_2}\), (B) \(Ba{O_2}\), (C) \(C{O_2}\)the correct statement is:
  • A
    (A) is peroxides but not (B) and (C)
  • B
    Both (A) and (B) are peroxides but not (C)
    Correct
  • C
    (A) and (C) are peroxides but not (B)
  • D
    All are peroxides
9
In which of the following AgCl is maximum soluble?
  • A
    Ammonia
    Correct
  • B
    0.1 M HCl
  • C
    water
  • D
    0.2 M \(AgN{O_3}\)
10
When 2 moles of \({N_2}\)gas and 9 moles of \({H_2}\)gas are mixed and reaction is completed to from \(N{H_3}\)gas then reaction mixture will contain:
  • A
    4 moles of \(N{H_3}\)+3 moles of \({H_2}\)
    Correct
  • B
    11 moles of \(N{H_3}\)
  • C
    6 moles of\(N{H_3}\)+3 moles of\({H_2}\)
  • D
    2 moles of \(N{H_3}\)+1 mole of \({N_2}\)
11
International unit of atomic weight is-
  • A
    Oxygen – 16
  • B
    Hydrogen – 1
  • C
    Nitrogen – 14
  • D
    Carbon – 12
    Correct
12
Which of the following isotopes of Uranium is unstable-
  • A
    U-238
  • B
    All of the above
    Correct
  • C
    U-235
  • D
    U-234
13
An element have atomic number 19 and mass number 39. The number of neutron in its nucleus is-
  • A
    19
  • B
    58
  • C
    20
    Correct
  • D
    39
14
Mass percentage of nitrogen in the compound \({N_2}{O_3}\)is-
  • A
    63.60
  • B
    82.40
  • C
    36.84
    Correct
  • D
    46.70
15
A metal M has its Chloride formula \(MC{l_3}\)and equivalent weight of metal is 9. Atomic weight of element is-
  • A
    9
  • B
    27
    Correct
  • C
    3
  • D
    18