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Consider the following regarding the reasons for the fact that now Cyanobacteria are kept in Monera and not in Plantae:
I. They are prokaryotes.
II. The cell wall of cyanobacteria has peptidoglycan.
III. They can fix atmospheric nitrogen
The Corrcet explanations would be:
1. I and II only
2. I and III only
3. II and III only
4. I, II and III

Reptiles were very successful on land while amphibians were not. What evolutionary development was primarily responsible for the success of reptiles on land?
1. Scales over skin
2. Thoracic breathing
3. Amniotic egg
4. Strong Jaws

A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of roots is found in:
1. Chrysanthemum
2. Pistia
3. Jasmine
4. Pineapple

A 2 gm mixture of K₂CO₃ and KCl is completely reacted with 100 ml N/10 HCl. The % of K₂CO₃ in the mixture is (K = 39, Cl =35.5, C=12, O=16)
1. 69%
2. 34.5%
3. 50%
4. 100%

400 ml M/10 H₂SO₄ is mixed with 600 ml N/10 NaOH then normality and nature of solution respectively will be
1. 0.02N, basic
2. 0.02N, acidic
3. 0.046N, acidic
4. 0.142N , acidic

Which of the following structure is most expected for the molecule XeOF₄ ?
1. Tetrahedral
2. Square pyramid
3. Square planar
4. Octahedral

If energy (E), velocity (V) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface tension will be:
1.  $\left[{\mathrm{EV}}^{-1}{\mathrm{T}}^{-2}\right]$
2.  $\left[{\mathrm{EV}}^{-2}{\mathrm{T}}^{-2}\right]$
3.  $\left[E^2{V}^{-1}{\mathrm{T}}^{-2}\right]$
4.  $\left[{\mathrm{EV}}^{-2}{\mathrm{T}}^{-1}\right]$

A body is displaced from (0,0) to (1m,1m) along the path x=y by a force $F=\left(x^2\hat{j}+y\hat{i}\right)N$. The work done by this force will be :
1. $\frac{4}{3}J$
2. $\frac{5}{6}J$
3. $\frac{3}{2}J$
4. $\frac{7}{5}J$