List of practice Questions

Copper matte is put in silica lined converter to

Copper pyrites is concentrated by

Corm is

Coordination number of Cr is six. A complex ion of Cr with $C_2O_4^{ 2-}$, en and superoxide ion, $O_2^ -$ has the formula $[Cr(C_2O_4)_x(en)_y(O_2)_z]^-$. The ratio x : y : z will be

Coordination number of $Zn$ in $ZnS$ (Zine blende) is

Copolymer is

Copper is refined by

Convert $240^{\circ}$ into radian.

Convert $40^{\circ}20'$ into radian measure.

Convert $6$ radians into degree measure.

Conversion of fibrinogen to fibrin is catalysed by

Conversion of phenol to salicylic acid and to salicyaldehyde are known as (respectively)

Conversion of phosphoglyceraldehyde to 1, 1-biphosphoglyceric acid is a

Conversion of sugar into alcohol during fermentation is due to the direct action of

Consider $ {\frac{x}{2} + \frac{y}{4} \geq 1 }$ and $ {\frac{x}{3} + \frac{y}{2} \leq 1 , x , y \geq 0 }$ Then number of possible solutions are :

Continuity of cytoplasm from cell to cell is maintained through cytoplasmic connections in plants called

Contractile vacuole is absent in :

Consider the isoelectronic species, $Na^+$, $Mg^{2+}$, $F^-$ and $O^{2-}$. The correct order of increasing, length of their radii is

Consider the system of linear equations $ x_1+2x_2+x_3=3\\[0.3em] 2x_1+3x_2+x_3=3 \\[0.3em]3x_1+5x_2+2x_3=1 $ The system has

Consider the following statements and select the option stating which ones are true $(T)$ and which ones are false $(F)$. (i) There are many side effects of tubectomy and vasectomy. (ii) Purpose of tubectomy is to prevent egg formation. (iii) Contraceptive oral pills help in birth control by preventing ovulation. (iv) Genital warts is a sexually transmitted disease caused by herpes virus. (v) In India, there is rapid decline in infant mortality rate and $MMR$.

Consider the following statements regarding the given figure and select the correct one.

Consider the following two statment is A and B and identify the correct Answer A) The bulk modulus for an incompressihle liquid is infinite. B) Young's modulus increases with rise of temperature.

Consider the given features and choose the correct one from the options given below with respect to living beings. I. They reproduce. II. Theymetabolise. III. They have cellular organisation. IV. They have ability to respond to stimuli.

Consider the following statements $(A - C)$ each with one or two blanks. (A) $(1)$ are the most abundant cells ($60-65$ per cent) of the total $WBCs$ and $(2)$ are the least ($0.5-1$ per cent) among them. (B) Platelets are cell fragments produced from $(3)$. (C) During clot formation, fibrins are formed by the conversion of inactive $(4)$ in the plasma by the enzyme $(5)$. Which one of the following options, gives the correct fill ups for the respective blank numbers from $(1)$ to $(5)$ in the statements?

Consider the following statements $(A - C)$ each with two blanks. A. Animals like Hydra and jelly fish depict $(i)$ symmetry whereas earthworm and leech show $(ii)$ symmetry. B. In $(iii)$ and $(iv)$ digestive tract has only single opening (mouth) and is said to be incomplete. C. Trichinella (Trichina worm) is a cosmopolitan $(v)$ parasite whereas Fasciola (liver fluke) lives in the bile ducts of the liver of $(vi)$ . Which one of the following options, correctly fills any two statements?