NTSE SAT Chemistry Papers 08

NTSE SAT Chemistry Papers 08

This is NTSE SAT Chemistry Papers 08 .. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Which of the following sets of elements do not belong to the same group in the Modern Periodic Table?1. F, CI, Br2. Na, K. Rb3. P, S, CI4. C, Si, Ge
  • A
    (iii)
    Correct
  • B
    (iii) & (iv)
  • C
    (ii)
  • D
    (i)
2
An organic compound (X) has the molecular formula\({C_2}{H_4}{O_2}\). Compound (X) evolves carbon dioxide from Sodium carbonate. Compound (X) reacts with ethanol to form (Y) used for making perfumes. The chemichal formula of (Y) is :
  • A
    \({C_2}{H_5}OH\)
  • B
    \(C{H_3}COO{C_2}{H_5}\)
    Correct
  • C
    \(C{H_3}COOH\)
  • D
    \(C{H_3}CO{C_2}{H_5}\)
3
Which of the following has maximum non-metallic character'!
  • A
    Br
  • B
    Cl
  • C
    F
    Correct
  • D
    I
4
Which pare of atomic number represent S-block elements
  • A
    9, 17
  • B
    7, 15
  • C
    6, 14
    Correct
  • D
    4, 12
5
Valency of carbon in \(CO_3^{2 - }\)
  • A
    2
  • B
    4
  • C
    3
  • D
    5
    Correct
6
The electronic configuration of two elements X and Y are given below-X=2, 8, 8, 2Y=2, 8, 7The formula of a compound that can be formed between these two elements is
  • A
    \(X\,{Y_2}\)
    Correct
  • B
    \(X\,{Y_3}\)
  • C
    X Y
  • D
    \({X_2}\,Y\)
7
The main component of Bio gas is-
  • A
    Benzene
  • B
    Ethylene
  • C
    Methane
    Correct
  • D
    Ethane
8
Which of the following shows the tyndall effect-I. Common saltII. MilkIII .Copper sulphate solutionIV. Starch solution
  • A
    (III) and (IV)
  • B
    (II) and (IV)
    Correct
  • C
    (I) and (II)
  • D
    (II) and (III)
9
Which one of the following compound will give addition reation-
  • A
    \({C_3}{H_8}\)
  • B
    \(C{H_4}\)
    Correct
  • C
    \({C_2}{H_6}\)
  • D
    \({C_2}{H_4}\)
10
Nature of aqueous solution of salt obtained by the reaction of strong acid and strong base is-
  • A
    Neutral
  • B
    Amphoteric
  • C
    Basic
    Correct
  • D
    Acidic
11
Which of the following alloy does not contain zinc metal
  • A
    German silver
    Correct
  • B
    Gun metal
  • C
    Brass
  • D
    Bronze
12
The functional group of carboxylic acid is-
  • A
    Option A
  • B
    Option B
  • C
    —OH
    Correct
  • D
    —CHO
13
Number of moles is 128 gm of sulphur will be-
  • A
    4
  • B
    2
  • C
    None of these
    Correct
  • D
    8
14
In the end of manufacturing of cement _________ is mixed with the clinkers-
  • A
    Alumina powder
  • B
    None of the above
  • C
    Gypsum powder
  • D
    Magnesium powder
    Correct
15
The pH value of 100 litre aqueous solution containing 4 gram NaOH is:
  • A
    9
  • B
    11
    Correct
  • C
    3
  • D
    14