List of practice Questions

Manganese dioxide on heating with conntrated hydrochloric acid gives a greenish yellow gas, X. With exss of ammonia X gives Y and Z. Y and Z respectively are
The spin-only magnetic moment of ${[MnBr4]^2-}$ is 5.9 BM. The geometry of the complex and x respectively are

Which of the following are correct? 
i. V$^{2+}$ liberates hydrogen from a dilute acid
ii. The earlier members of lanthanide series behave more like aluminium 
iii. The ‘silver’ UK coins are made of CuNi alloy 
iv. The maximum oxidation state exhibited by Neptunium is +7

Identify the correct statement with respect to high-density polythene
Which of the following correctly represents hydrogen bonded pairs in DNA?
The bond angle is maximum in which of the following molecules?
Which of the following shows the maximum number of geometrical isomers?
The IUPAC name of \([Co(NH_3)_5ONO]Cl_2\) is:
Which of the following is not an inner orbital complex?
What are ‘X’ and ‘Y’ respectively in the following reactions?

Among the following the appropriate reactants for the preparation of 1–ethyl cyclohexanol are

The type of reaction 'X' and product 'Y' of the following are respectively:
\[ {C_6H_5N_2Cl + C_6H_5NH_2 ->[\text{heat}] X -> Y} \]

A person suffering from Iodine deficiency may be recommended to take extracts of this plant preparation.
Fusion between two similar gametes, two dissimilar gametes, and non-motile and motile gametes occurs in these organisms respectively.
A specific organism [A] showing the lack of cell wall, survive without oxygen, pleomorphic. The other organism [B] has cell wall embedded with silica and indestructible. A and B respectively belong to
List I List II List III
List IList IIList III
(a) Witches Broom(III) Mycoplasma(i) Prokaryote
(b) Sleeping Sickness(I) Trypanosome(iii) Protozoa
(c) Early Blight(IV) Alternaria(ii) Fungi
(d) Scrapie (II) Sheep(iv) Virus
Match the following
List IList IIList III
(A) One seeded bits of fruits(II) Mericarps(iv) Schizocarpic
(B) Jack fruit(I) Composite(iii) Entire inflorescence
(C) Fleshy thalamus (IV) Apple(i) Pome
(D) Fused pericarp & seed coat(III) Caryopsis(ii) Rice
Match the following
List AList B
A) Stigma II) Tip of the style
B) Seat of ovulesIII) Placenta
C) Basal part of GynoeciumIV) Ovary
D) Elongated tubeI) Style
Name the cells of mature pollen grain when you observe under microscope with the following characters respectively,
A) Bigger cell with abundant food reserve and large irregular shaped nucleus.
B) Small, dense cytoplasm with nucleus.
Assertion (A): There is no variation in size of mature seeds in orchids.
Reason (R): Lodoicea maldivica is the plant with largest seed.
Match the following
List IList II
I) Makoi D) Solanum nigrum
II) Red dragonA) Dracaena angustifolia
III) SarasaparillaB) Smilax zeylanica
IV) Night queenC) Cestrum nocturnum
The reason for the genetic variation in the population of organisms
The smooth and rough endoplasmic reticulum are involved in the synthesis of
Name the cell organelle which are involved in the following processes
A. Conversion of stored lipids to carbohydrates
B. Catabolism of long chain fatty acids
Assertion (A): Eukaryotic cells have the ability to adopt a variety of shapes and carry out directed movement.
Reason (R): Microfilaments, microtubules and intermediate filaments, constitute the cytoskeleton.