Q.1.
The compound insoluble in acetic acid is ..
-
13%
a) Calcium oxide
-
35%
b) Calcium carbonate
-
35%
c)Calcium oxalate
-
17%
d)Calcium hydroxide
Q.2.
Portland cement is manufactured by using [ CPMT 1987]
-
16%
a) Lime stone, clay and sand
-
33%
b) Limestone, gypsum and sand
-
22%
c)Limestone, gypsum and alumia
-
29%
d)Limestone, clay and gypsum
Q.3.
Which of the following statements is correct for alkaline earth metals? ..[NCERT 1990]
-
18%
a) They are diatomic and forms ions of M2-
-
22%
b) They are highly electronegative elements
-
9%
c) They are monoatomic and form ions of type M+
-
51%
d) They are monoatomic and form ions of the type M2+
Q.4.
The first ionization energies of alkine earth metals are higher than those of the alkali metals. This is because... [ MP CEE 1996]
-
75%
a) There is an increase in the nuclear change of the alkaline earth metals
-
14%
b) There is a decrease in the nuclear charge of the alkaline earth metals
-
5%
c) There is no change in the nuclear charge
-
7%
d) None of the above
Q.5.
Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give : .... [NEET 2020]
-
45%
a)Tert. butyl alcohol
-
24%
b) Isobutyl alcohol
-
30%
c) Isopropyl alcohol
-
0%
d) Sec. butyl alcohol
Q.6.
HCl was passed through a solution of CaCl2, MgCl2 and NaCl. Which of the following compound(s) crystallise(s)? [ NEET 2020]
-
23%
a) Only MgCl2
-
32%
b) NaCl, MgCl2 and CaCl2
-
23%
c) Both MgCl2 and CaCl2
-
23%
d) Only NaCl
Q.7.
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is : [NEET 2019]
-
22%
a) Be
-
57%
b) Mg
-
19%
c) Ca
-
3%
d) Sr
Q.8.
Which of the following is an amphoteric hydroxide? [NEET 2019]
-
19%
a) Sr(OH)2
-
23%
b) Ca(OH)2
-
3%
c) Mg(OH)2
-
55%
d) Be(OH)2
Q.9.
Which of the following oxides is most acidic in nature ? [NEET 2018]
-
25%
a) BaO
-
50%
b) BeO
-
16%
c) MgO
-
9%
d) CaO
Q.10.
Among CaH2, BeH2, BaH2, the order of ionic character is [NEET 2018]
-
29%
a) BeH2 < BaH2 < CaH2
-
13%
b) CaH2 < BeH2 < BaH2
-
45%
c) BeH2 < CaH2 < BaH2
-
13%
d) BaH2 < BeH2 < CaH2
Q.11.
The product obtained on fusion of BaSO4 and Na2CO3 is: [ AFMC 2005]
-
45%
a) BaCO3
-
6%
b) BaO
-
29%
c)Ba(OH)2
-
19%
d)BaHSO4
Q.12.
Which of the following is used to produce smoke screens? [ AFMC 2005]
-
28%
a) Calcium phosphide
-
28%
b) zinc sulphide
-
21%
c) sodium carbonate
-
24%
d) zinc phosphide
Q.13.
Li has the maximum value of ionization potential among the alkali metals i.e. lithium has the minimum tendency to ionize to give Li+ ion. Thus, in aq. solution lithium is .. [ AFMC 2011]
-
56%
a)strong reducing agent
-
18%
b) Poorest reduction agent
-
18%
c)Strongest Oxidizing agent
-
9%
d)Poorest oxidizing agent
Q.14.
Among the alkali metals, cesium is the most reactive because .. [ AFMC 2008]
-
10%
a) its incomplete shell is nearest to the nucleus
-
0%
b) it has a single electron in the valance shell
-
3%
c)it is the heaviest alkali metal
-
86%
d)the outermost electron is more loosely bound than the outermost electron of other alkali metals.
Q.15.
Calcium Carbide reacts with water to produce ..[ AFMC 2006]
-
12%
a) ethane
-
17%
b) methane
-
29%
c)ethylene
-
42%
d)acetylene
Explanation
Q.16.
Glauber salt is
-
33%
a) MgSO4.7H2O.
-
20%
b) CuSO4.5H2O.
-
13%
c) FeSO4.7H2O.
-
33%
d) Na2SO4.10H2O.
Q.17.
A major constituent of Portland cement ( except lime ) is [ CPMT 1980]
-
54%
a)Silica
-
19%
b) Aluminia
-
4%
c)Iron oxide
-
23%
d)Magnesia
Q.18.
Calcium cyanamide on treatment with steam under pressure gives NH3 and .. [CPMT 1986]
-
48%
a) Calcium carbonate
-
26%
b) Calcium hydroxide
-
13%
c)Calcium oxide
-
13%
d)Calcium bicarbonate
Q.19.
Which of the following is least soluble in water? [ Pb. CET 1988]
-
36%
a) BeSO4
-
28%
b) BaSO4
-
20%
c)CaSO4
-
16%
d)SrSO4
Q.20.
Dolomite has the composition ..[Pb CET 1989]
-
32%
a) Kcl . MgCl2 . 6H2O
-
11%
b) Na3AlF6
-
16%
c) CaCO3 . MgCO3
-
42%
d) CaCl2 . MgCl2 . 6H2O
Q.21.
Which of the following metal carbonates decomposes on heating? [ MLNR 1985]
-
41%
a)MgCO3
-
25%
b) Na2CO3
-
22%
c)K2CO3
-
12%
d)Rb2CO3
Q.22.
Magnesium keeps burning in .. [ AFMC 1987]
-
12%
a) N2
-
12%
b) CO2
-
25%
c)NO2
-
50%
d)N2 as well as CO2
Q.23.
Drying agent which reacts with CO2 and removes water vapour is ..[AFMC 1988]
-
38%
a) CaO
-
19%
b) CaCl2
-
31%
c)CaCO3
-
12%
d)Ca(NO3)2
Q.24.
Thermal stability of alkaline earth metal carbonates decreases in order ..[ NCERT 1983]
-
62%
a) BaCO3 > SrCO3 > CaCO3 > MgCO3
-
15%
b) BaCO3 > SrCO3 > MgCO3 > CaCO3
-
12%
c) CaCO3 > SrCO3 > MGCO3 > BaCO3
-
12%
d) MgCO3 > CaCO3 > SrCO3 > BaCO3
Q.25.
the hydration energy of Mg2+ ions is larger than that of ..
-
25%
a)Al3+
-
25%
b) Na+
-
29%
c)Be2+
-
21%
d)Mg3+
Q.26.
of the following the commonly used in a laboratory desiccators is ..[MP PMT 1987]
-
26%
a) Anhydrous Na2CO3
-
26%
b) Anhydrous CaCl2
-
35%
c)Dry NaCl
-
13%
d)None of the above
Q.27.
A firework gives out crimson colour light. It contains salt of ..[AFMC 1989]
-
36%
a) Ca
-
18%
b) Na
-
32%
c)Sr
-
14%
d)Ba
Q.28.
Plaster of Paris is hardens by ... [ CPMT 1989]
-
18%
a) Giving off CO2
-
27%
b) Changing into CaCO3
-
41%
c) Combining with water
-
14%
d) Giving out water
Q.29.
Which one of the alkaline earth metals shows some anomalous behavior and has the same electro negativity as aluminum? [ AIIMS 1985]
-
17%
c)Ca
-
58%
d)Be
-
17%
a)Ba
-
8%
b) Sr
Q.30.
Formula for calcium cyanamide is .. [ Roorkee 1998]
-
50%
a) Ca(CN)2
-
8%
b) CaC2N
-
33%
c)CaNCN
-
8%
d)CaCHNH2