1. A > C > B > D
2. B > A > D > C
3. B > D > C > A
4. A > B > C > D
B > A > D > C
1. Al2O3 + KF + Na3AlF6
2. Al2O3 + HF + NaAlF4
3. Al2O3 + CaF2 + NaAlF4
4. Al2O3 + Na3AlF6 + CaF2
Al2O3 + Na3AlF6 + CaF2
1. PCl3
2. H2O
3. BF3
4. NH2-
PCl3
1. Both starch and cellulose are polymers of glucose
2. Artificial silk is derived from cellulose
3. Nylon-66 is an example of elastomer
4. The repeat unit in natural rubber is isoprene
Nylon-66 is an example of elastomer
1. 4
2. 1
3. 3
4. 2
1
1. Benzene
2. Benzoic acid
3. Nitrobenzene
4. Toluene
Toluene
1. Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the periodic table
2. Amongst isoelectronic species, smaller the positive charge on the carbon, smaller is the ionic radius
3. Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius
4. Atomic radius of the elements increases as one moves down the first group of the periodic table
Amongst isoelectronic species, smaller the positive charge on the carbon, smaller is the ionic radius
1. K2Cr2O7 solution becomes yellow on increasing the pH beyond 7
2. On passing H2S through acidified K2Cr2O7 solution, a milky colour is observed
3. Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis
4. K2Cr2O7 solution in acidic medium is orange
Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis
1. Zero to + 1 and zero to –3
2. Zero to +1 and zero to –5
3. Zero to –1 and zero to + 5
4. Zero –1 and zero to + 3
Zero to –1 and zero to + 5
1. Na
2. Rb
3. K
4. Li
Li