NAT II Physical Science Chemistry With Answers

NAT II Physical Science Chemistry

Sr. # Questions Answers Choice
1 Vital force theory was rejected by Berzelius Kolbe Wholer Lavoiser
2 The rotation of two carbon atoms joined by double bond would happened only if P<sub>i</sub>bond is broken Sigma bond is broken Both bonds are broken None of above
3 Which of the following has linear shape? SP SP<sup>2</sup> SP<sup>3</sup> None of the above
4 Hybridization explain the ----------- of orbitals Type of Bonding Shapes Shape and Type of bonding None of above
5 1-Chloropropane has two isomers. It is an example of Chain isomerism Position isomerism Function group isomerism Meramerism
6 The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called Functional isomers Position isomers Chain isomers Metamers
7 In which molecule carbon atom is sp2hybridized CH<sub>4</sub> C2H<sub>4</sub> C<sub>2</sub>H<sub>2</sub> None of the above
8 When a carbon atom forms single bonds with other carbon atoms, these hybird orbitals overlap with the orbitals of hydrogen to form four bonds which are Three sigma and one P<sub>i</sub> Two sigma andtwo P<sub>i</sub> One sigma and three P<sub>i</sub> Sigma
9 Sodium thisoulphate is used in photography because of its Oxidizing behaviour Reducing behaviour Complexing behaviour Photochemical behavior
10 In the manufacture of iron from haematite, limestone is added to act as. Flux A reducing agent Slag An oxidizing agent
11 Rusting of iron is catalysed by Fe O<sub>2</sub> Zn H<sup>+</sup>
12 Which has largest radius? CO<sup>3+</sup> Mn<sup>3+</sup> Fe<sup>3+</sup> Cr<sup>3+</sup>
13 Which of the following metal exhibits more than one oxidation? Na Mg Fe Al
14 Which of the following transition metal ions will have definite value of magnetic moment? Sc<sup>3+</sup> Ti<sup>3+</sup> Cu<sup>+</sup> Zn<sup>2+</sup>
15 Iron, once dipped in concentrated H2SO4, does not displace copper from copper sulphates solution, because It is less reactive than copper A layer of sulphates is deposited on it An inert layer of iron oxide is deposited on it. All valence electrons of iron are consumed.
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