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The s-Block Elements – Chemistry | NEET Online Mock Test

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Online Mock Test Description

Mock TestThe s-Block Elements
ExamNEET Medical Test
SubjectChemistry
Marks100
No. Questions50 Questions
Time50 Minutes

5

The s-Block Elements - NEET (Chemistry)

Best of Luck!

1 / 30

Barium burns in excess of oxygen forming

  1. BaO
  2. Ba2O2
  3. BaO2
  4. Ba2O4

2 / 30

In which of the following properties Li and Mg are similar

a) Atomic radii and ionic radii of Li and Mg are nearly same
b) Atomic volume of Li and Mg are nearly similar
c) Li and Mg both reacts with N2 gas
d) Li and Mg give the same flame colouration

Select the correct statements

3 / 30

Select the statement that is correct

  1. K2CO3 is prepared by solvay process
  2. Density of K is more than Na
  3. LiCl is soluble in pyridine
  4. NaCl is more soluble than CsCl

4 / 30

Among LiCI, RbCI, BeCl2 and MgCl2, the compounds with the greatest and least ionic character respectively are

  1. LiCl and RbCI
  2. RbCl and BeCl
  3. RbCl and MgCl2
  4. MgCl2 and BeCl2

5 / 30

Select the statement(s) that is/are correct

Statement - 1:
Concentrated solution of sodium in liq NH3 is diamagnetic

Statement - II:
ко2 is paramagnetic coloured

Statement - III:
NaHCO3 is less soluble compound than KHCO3 in water

Statement IV:
In vapour phase of BeCl2, hybridization of Be is only sp.

6 / 30

Select the correct order

  1. Cs > Rb > K > Na Li (Reducing power in aqueous medium
  2. LIHCO3 > NaHCO3 > KHCO3 > RbHCO3 2 CSHCO3 (thermal stability)
  3. NaCI > KCI > RbCl > CsCI > LICI (M.P.)
  4. CsCI > RbCl > KCI > NaCI > LICI (Solubility in water)

7 / 30

The byproduct of the solvay ammonia process is

  1. CO2
  2. NH3
  3. CaCl2
  4. CaCO3

8 / 30

The alkali halide that is soluble in pyridine is

9 / 30

Na,CO, is formed when

  1. Na2SO4 is reduced with coke
  2. Na2O2 is treated with CO
  3. NaCl reacts with CaCO3
  4. Na2O reacts with CH4

10 / 30

Correct order of stability of Alkaline metal carbonate is

  1. BaCO3 > SrCO3 > CaCO3 > MgCO3
  2. MgCO3 > CaCO3 > SrCO3 > BaCO3
  3. SrCO3 > BaCO3 > CaCO3 > MgCO3
  4. CaCO3 > MgCO3 > BaCO3 > SrCO3

11 / 30

Which of the following is/are correct?

  1. Stability: BaCO3 > SrCO3 > CaCO3 > MgCO3
  2. lonisation energy: C > Si > Ge > Pb > Sn
  3. Density: Cs > Rb > Na > K > Li
  4. All of these

12 / 30

Which one of the alkali metal can directly reacts with N2 of air?

13 / 30

Which of the following element of II group in periodic table is example of amphoteric element?

14 / 30

When solution of Mg(HCO3)2 is heated white ppt is formed having formula

  1. Mg(OH)2
  2. MgCO3
  3. MgO
  4. Mg3C2

15 / 30

Which of the following alkali metal can make superoxide?

16 / 30

Which of the following is a correct statement ?

  1. lonic radius of Mg++ > lonic radius of Li+
  2. Both Li and Mg show flame colour
  3. Li shows diagonal relationship with Mg
  4. All are correct statement

17 / 30

Which of the following is most abundant cation within cell fluid ?

  1. K+
  2. Na+
  3. Ca2+
  4. All of the above have equal concentration

18 / 30

Which of the following reactions is not a part of the Solvay process

  1. NH3 +H2O + CO2 → NH4HCO3
  2. NaCl + NH4HCO3 → NaHCO3 + NH4Cl
  3. NH4Cl → NH3 + HCl
  4. 2NaHCO3 → Na2CO3 + CO2 + H2O

19 / 30

Which among the following is least soluble in water?

20 / 30

Which is correct?

  1. LiHCO3 > NaHCO3 > KHCO3 (solubility in water)
  2. Li2CO3 > Na2CO3 > K2CO3(solubility in water)
  3. K2CO3 > Na2CO3 > Li2CO3  thermal (Stability > order)
  4. Be(OH)2 > Mg (OH)2 > Ca(OH)2 (Thermal stability order)

21 / 30

The correct order of thermal stability

  1. BeCO3 > MgCO3 > CaCO3
  2. Be(HCO3)2 > Mg(HCO3)2 > Ca(HCO3)2
  3. BeSO4 > CaSO4 > SrSO4
  4. Ca(NO3)2 < Sr(NO3)2 < Ba(NO3)2

22 / 30

The correct solubility order of alkaline earth metal sulfates in H2O is

  1. BeSO4 < MgSO4 < CaSO4 < SrSO4 < BaSO4
  2. MgSO4 < CaSO4 < BeSO4 < BaSO4 < SrSO4
  3. BaSO4 < BESO4 < MgSO4 < SrSO4 < CasO4
  4. BaSO4 < SrSO4 < CaSO4 < MgSO4 < BeSO4

23 / 30

Which of the following is most soluble in water?

  1. LiClO4
  2. NaClO4
  3. KClO4
  4. CsClO4

24 / 30

Which of the following gives metal oxide on healing?

  1. KNO3
  2. LiNO3
  3. RbNO3
  4. NaNO3

25 / 30

Which of the following compounds has the highest melting point

26 / 30

Select the correct statements given below

I. LiHCO3 can be crystallised
II. KHCO3 a more soluble than NaHCO3
III. NaNO3 on heating above 800°C produces N2 and O2
IV. NaCl is hygroscopic in nature

27 / 30

Select the correct statements for elements and their compounds of Group-2

I. Be reacts with conc. HNO3 to produce NO2
II. Sulphates of Mg and Ca don't form hydrates
III. MgCl2 and CaCl2 are deliquescent in nature
IV. BeO can be dissolved in NaOH

28 / 30

Match column-1 with Column-11
Column-l                                      Column-II
(A) CaC2                                      (p) Produces H2O2 with dil H2SO4 at low temperatures
(B) Mg (HCO3)2                         (q) Stronger reducing agent
(C) BaO2                                      (r) Does not exist in solid form
(D) CaH2                                      (s) Produces C2H2 on hydrolysis

  1. A → p, B → a, C → r, D → s
  2. A → s, B → r, C → p, D → q
  3. A → s, B → r ,C → q ,D → p
  4. A → r, B → s, C → q , D → p

29 / 30

Choose the correct melting point order:

  1. LiClO3 > NaClO3 > KClO3
  2. NaClO3 > LiClO3 > KCIO3
  3. KClO3 > NaClO3 > LiClO3
  4. LiClO3 > KClO3 > NaCiO3

30 / 30

The product obtained by heating LiNO3 will be:

  1. Li3 + O2
  2. Li2O + NO2 + O2
  3. Li2O + NO + O2
  4. Li + NO2 + O2

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