Description : Which of the following statements is correct regarding nucleophiles? (a) They have an overall positive charge (b) They have a lone-pair of electrons (c) They have an unpaired electron (d) They have empty orbitals
Last Answer : (b) They have a lone-pair of electrons
Description : Match List I (Industries) with List II (Important Centers) and select the correct answer using the code given below : L i st I L i st I I (I n dust r i es) (I m por t an t Cent er s) A. Cotton textile I. Ludhiana B. Hosiery II. ... I, C-II, D-III (3) A-III, B-II, C-I, D-IV (4) A-III, B-I, C-II, D-IV
Last Answer : (4) A-III, B-I, C-II, D-IV
Description : For principle quantum number `n = 4`, the total number of orbitals having `l =3` is
Last Answer : For principle quantum number `n = 4`, the total number of orbitals having `l =3` is A. 3 B. 7 C. 5 D. 9
Description : Choose the option that lists the set of statements that are NOT TRUE according to the poem. I. The tiger is in quiet rage because he has been imprisoned. II. A tiger is caged and kept in the zoo. III. He criticises the brilliant stars ... edge. (a) II & V (b) I, IV & V (c) I, II & III (d) III & V
Last Answer : (d) III & V
Description : .Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele ... (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)
Last Answer : (d) (ii) (iii) (iv) (i)
Description : Match the items given in column I with those in column II and choose the correct option. Column I Column II A. Rennin (i) Vitamin B12 B. Enterokinase (ii) Facilitated transport C. Oxyntic cells (iii)Milk proteins D. Fructose (iv) ... ii (c) A-iv, B-iii, C-ii, D-i (d) A-iii, B-iv, C-i, D-ii
Last Answer : (d) A-iii, B-iv, C-i, D-ii
Description : Match the following. (A) Inhibitor of (i) Ricin catalytic activity (B) Possess peptide (ii) Malonate bonds (C) Cell wall material (iii)Chitin in fungi (D) Secondary (iv) Collagen metabolite Choose the correct option from the following: (A) ... iv) (ii) (c) (iii) (iv) (i) (ii) (d) (ii) (iii) (i) (iv)
Last Answer : (A) Inhibitor of (i) Ricin catalytic activity
Description : Compare the following complexes’ with respect to structural shapes of units, magnetic behaviour and hybrid orbitals involved in units : (i) [Ni(CN)4]2- (ii) [NiCl4]2- (iii) [CoF6]3- [At. Nos. : Ni = 28; Co = 27] -Chemistry
Last Answer : (i) [Ni(CN)4]2- Shape : Octahedral outer orbital complex Hybridisation : sp3d2 Magnetic behaviour : Paramagnetic (4 unpaired electrons)
Description : Compare the following complexes with respect to their shape, magnetic behaviour and the hybrid orbitals involved : (i) [CoF4]2- (ii) [Cr(H2O)2(C2O4)2]– (iii) [Ni(CO)4] (Atomic number : Co = 27, Cr = 24, Ni = 28) -Chemistry
Last Answer : (i) [COF4]2_ : Tetrafluorido cobalt (III) ion Coordination number = 4 Shape = Tetrahedral Hybridisation = sp3 Important Questions for Class 12 Chemistry Chapter 9 Coordination Compounds Class 12 Important Questions 7
Description : For the complex [Fe(en)2Cl2], Cl, (en = ethylene diamine), identify (i) the oxidation number of iron, (ii) the hybrid orbitals and the shape of the complex, (iii) the magnetic behaviour of the complex, (iv) ... an optical isomer also, and (vi) name of the complex. (At. no. of Fe = 26) \ -Chemistry
Last Answer : i) [Fe(en)2Cl2] Cl or x + 0 + 2 (-1) + (-1) = 0 x + (- 3) = 0 or x = + 3 ∴ Oxidation number of iron, x = + 3 (ii) The complex has two bidentate ligands and two ... )2Cl2] Cl, only cis-isomer shows optical isomerism. (vi) Name of complex: Dichloridobis (ethane-1, 2- diamine) Iron (III) chloride
Description : Which of the following are the components of loamy soils? 1. Red soil 2. Clay soil 3. Alluvial soil 4. Silt soil 5. Sandy soil In d i a n So i l , Se a s o n s a n d N a t u r a l Ve g e t a t i o n (a) I and II (b) I, III and IV (c) II and V (d) II, III and V
Last Answer : Ans: (c)
Description : River Alaknanda forms confluences (Prayags) in Uttrakhand. Match the codes given in Figure with Table (Prayags) and select the correct answer using the code given below. Figure Table (Pr ayags) D A L A K N A N D A C B A I. Karn Prayag II. Rudra Prayag III. Nand Prayag IV. Vishnu Prayag
Last Answer : (1) A-II, B-I, C-III, D-IV
Description : Match List I (Vegetation zones) with List II (Mean Annual Temperature Range) and select the correct anwer using the code given below: L i st I L i st I I (Vegetati on (M ean Annual Zones) Temper atur e ... 24C B. Temperate II. 17 to 24C C. Tropical III. Below 7C D. Sub-tropical IV. 7C to 17C
Last Answer : IV. 7C to 17C
Description : Choose the correct option the code regarding roasting process. (I) It is the process of heating the ore in air in a reverberatory furnace to obtain th
Last Answer : Choose the correct option the code regarding roasting process. (I) It is the process of heating the ore in air ... III and IV D. I , II , III and IV
Description : Read the facts regarding the Revolution of the Liberals in Europe during 1848 and choose the correct option: 1. Abdication of the monarch
Last Answer : Read the facts regarding the Revolution of the Liberals in Europe during 1848 and choose the correct option: 1. ... (d) Only 1, 2 and 4 are correct.
Description : .Match items in column I with those in columnII. Column I Column II (A) Peritrichous flagellation (J) Ginkgo (B) Living fossil (K) Macrocystis (C) Rhizophore (L) Escherichia coli (D) Smallest flowering plant (M) Selaginella (E) Largest perennial ... - M; E - J (d) A - J; B - K; C - N; D - L; E - M
Last Answer : (a) A - L; B - J; C - M; D - N; E - K
Description : The N–H bond in the ammonium ion, NH4+, is formed by the overlap of what two orbitals? (a) sp3–sp3 (b) sp3–sp2 (c) sp2–sp2 (d) sp3–s
Last Answer : sp3–s
Description : 6. Who defined Operations Research as scientific method of providing executive departments with a quantitative basis for decisions regarding the operations under their control? a. Morse and Kimball (1946) b. P.M.S Blackett (1948) c. E.L. Arnoff and M.J. Netzorg d. None of the above
Last Answer : a. Morse and Kimball (1946)
Description : Which of the following statement/s are ALWAYS FALSE ? (i) The sun will not rise in the East some day. (ii) A wooden table is not a table. (iii) Delhi city will be drowned under water. (iv) Cars run on water as fuel. ... i), (iii) and (iv) (B) Only (iii) (C) (i), (ii) and (iii) (D) (ii) alone
Last Answer : (D) (ii) alone
Description : In RSA public key cryptosystem suppose n=p*q where p and q are primes. (e,n) and (d,n) are public and private keys respectively. Let M be an integer such that 0
Last Answer : (2) I and III
Description : Which of the following statement (s) regarding India's coal reserves is/are true ? 1. Over 90 percent of total reserves are located in the valleys of Son, Damodar, Mahanadi and Godavari 2. Indian coal reserves are characterised ... reserves (a) I only (b) I and III (c) II and III (d) I, II and III
Description : Which of the following statement is correct regarding following process ? `(i) Cl overset(E.A)to Cl^(-) " " (ii) Cl^(-) overset(I.E.)to Cl` `(iii) Cl
Last Answer : Which of the following statement is correct regarding following process ? `(i) Cl overset(E.A)to Cl^(-) " ... of process (iv)|=|E.A of process (iii)|
Description : Given below are four statements (i-iv) regarding human blood circulatory system. (i) Arteries are thick-walled and have narrow lumen as compared to veins. (ii) Angina is acute chest pain when the blood circulation to the brain is ... (iv) (b) (i) and (ii) (c) (ii) and (iii) (d) (iii) and (iv)
Last Answer : (a) (i) and (iv)
Description : Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms. (i) Methanogens are archaebacteria which produce methane in marshy areas. (ii) Nostoc is a filamentous blue-green alga which fixes ... iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iv).
Last Answer : (d) (i), (ii) and (iv)
Description : Identify the correct option in column I, II and III
Last Answer : Identify the correct option in column I, II and III A. 2-a-iii,1-c-iv,3-b-I,4-d-ii B. 1-c-iv,2-d-iii,3-b ... ,4-c-ii D. 2-d-iii,1-c-iv,3-a-ii,4-b-iv.
Description : Macth the following and select the correct option. (a) Earthworm (i) Pioneer species (b) Succession (ii) Detrivore (c) Ecosysem service (iii) Natality
Last Answer : Macth the following and select the correct option. (a) Earthworm (i) Pioneer species (b) Succession (ii) Detrivore (c) ... "(i)", "(iv)", "(iii)"):}`
Description : Which of the options in the given table are correct? Option | Natural Source | Acid Present (i) Orange | Oxalic acid (ii) Sour milk | Lactic acid (iii) Ant sting | Methanoic acid (iv) Tamarind | Acetic acid (a) (i) and (ii) (b) (i) and (iv) (c) (ii) and (iii) (d) (ii) and (iv)
Last Answer : Answer: (c)
Description : Match the following and select the correct option. A. Earthworm (i) Pioneer species B. Succession (ii) Detritivore C. Ecosystem service (iii)Natality D. Population growth (iv) Pollination A B C D (a) (i) (ii) (iii) (iv) (b) (iv) (i) (iii) (ii) (c) (iii) (ii) (iv) (i) (d) (ii) (i) (iv) (iii)
Last Answer : (d) (ii) (i) (iv) (iii)
Description : Match the trophic levels with their correct species examples in grassland ecosystem. (A) Fourth trophic level (i) Crow (B) Second trophic level (ii) Vulture (C) First trophic level (iii) Rabbit (D) Third trophic level (iv) Grass Select the ... i) (iv) (c) (iv) (iii) (ii) (i) (d) (i) (ii) (iii) (iv)
Last Answer : (a) (ii) (iii) (iv) (i)
Description : Match the following columns and select the correct option. Column-I Column-II (A) Bt cotton (i) Gene therapy (B) Adenosine (ii) Cellular defence deaminase deficiency (C) RNAi (iii) Detection of HIV infection (D) PCR (iv) Bacillus ... (i) (iv) (c) (ii) (iii) (iv) (i) (d) (i) (ii) (iii) (iv)
Last Answer : (a) (iv) (i) (ii) (iii)
Description : Match the organism with its use in biotechnology. (A) Bacillus (i) Cloning vector thuringiensis (B) Thermus (ii) Construction of first aquaticus rDNA molecule (C) Agrobacterium (iii)DNA polymerase tumefaciens (D) Salmonella (iv) Cry proteins ... (ii) (c) (iii) (ii) (iv) (i) (d) (iii) (iv) (i) (ii)
Last Answer : (b) (iv) (iii) (i) (ii)
Description : In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (i-iv) in this regard and select the correct option about which one or more of these ... ii) and (iv) (b) (i) only (c) (i) and (iii) (d) (ii) and (iv)
Last Answer : (d) (ii) and (iv)
Description : Match column I with column II and select the correct option using the codes given below. Column I Column II A. Citric acid (i) Trichoderma B. Cyclosporin A (ii) Clostridium C. Statins (iii)Aspergillus D. Butyric acid (iv) Monascus (a) A- ... -(iv), C-(ii), D-(iii) (d) A-(iii), B-(iv), C-(i), D-(ii)
Last Answer : (b) A-(iii), B-(i), C-(iv), D-(ii)
Description : Match the following organisms with the products they produce. (A) Lactobacillus (i) Cheese (B) Saccharomyces (ii) Curd cerevisiae (C) Aspergillus niger (iii) Citric acid (D) Acetobacter aceti (iv) Bread (v) Acetic acid Select the correct ... v) (iii) (c) (ii) (iv) (iii) (v) (d) (iii) (iv) (v) (i)
Last Answer : c) (ii) (iv) (iii) (v)
Description : Match the following columns and select the correct option. Column-I Column-II (A) Clostridium butylicum (i) Cyclosporin-A (B) Trichoderma polysporum (ii) Butyric acid (C) Monascus purpureus (iii) Citric acid (D) Aspergillus niger (iv) Blood cholesterol lowering agent
Last Answer : b) (ii) (i) (iv) (iii)
Description : Match the following diseases with the causative organism and select the correct option. Column-I Column-II A. Typhoid (i) Wuchereria B. Pneumonia (ii) Plasmodium C. Filariasis (iii) Salmonella D. Malaria (iv) Haemophilus A B C D (a) (i ... (i) (ii) (c) (ii) (i) (iii) (iv) (d) (iv) (i) (ii) (iii)
Last Answer : (b) (iii) (iv) (i) (ii)
Description : Match the following genes of the Lac operon with their respective products. (A) i gene (i) b-galactosidase (B) z gene (ii) Permease (C) a gene (iii)Repressor (D) y gene (iv) Transacetylase Select the correct option. (A) (B) (C) ( ... ) (iii) (ii) (iv) (c) (iii) (i) (ii) (iv) (d) (iii) (i) (iv) (ii)
Last Answer : (a) (iii) (iv) (i) (ii)
Description : Match the following RNA polymerase with their transcribed products : 1. RNA polymerase I (i) tRNA 2. RNA polymerase II (ii) rRNA 3. RNA polymerase III (iii) hnRNA Select the correct option from the following : (a) 1-i, 2-iii, 3-ii (b) 1-i, 2-ii, 3-iii (c) 1-ii, 2-iii, 3-i (d) 1-iii, 2-ii, 3-i
Last Answer : (b) 1-i, 2-ii, 3-iii
Last Answer : d) (iii) (i) (iv) (ii)
Description : It is a victory for ̳human dignity . Pick the option that lists the correct answer for what ̳human dignity would include. (a) i) equality ii) liberty iii) indecency (b) i) liberty ii) indecency iii) ... (c) i) immorality ii) self-respect iii) equality (d) i) equality ii) liberty iii) self-respect
Last Answer : (d) i) equality ii) liberty iii) self-respect
Description : Match the following sexually transmitted diseases (column I) with their causative agent (column II) and select the correct option. Column I Column II A. Gonorrhoea (i) HIV B. Syphilis (ii) Neisseria C. Genital warts (iii) Treponema D. ... iii) (i) (c) (iv) (iii) (ii) (i) (d) (ii) (iii) (iv) (i)
Description : Match column I with column II and select the correct option using the given codes. Column I Column II A. Mons pubis (i) Embryo formation B. Antrum (ii) Sperm C. Trophectoderm (iii)Female external genitalia D. Nebenkern (iv) Graafian ... (i), C-(iv), D-(ii) (d) A-(i), B-(iv), C-(iii), D-(ii
Last Answer : (b) A-(iii), B-(iv), C-(i), D-(ii)
Description : Match the following columns and select the correct option. Column-I Column-II (A) Placenta (i) Androgens (B) Zona pellucida (ii) Human Chorionic Gonadotropin (HCG) (C) Bulbourethral glands (iii) Layer of the ovum (D) Leydig cells (iv) ... (ii) (iii) (c) (iii) (ii) (iv) (i) (d) (ii) (iii) (iv) (i)
Description : Match the items given in column I with those in column II and select the correct option given below. Column I Column II A. Proliferative phase (i) Breakdown of endometrial lining B. Secretory phase (ii) Follicular phase C. Menstruation ( ... ) (i) (iii) (ii) (c) (ii) (iii) (i) (d) (iii) (i) (ii)
Last Answer : (c) (ii) (iii) (i)
Description : Match column I with column II and select the correct option using the codes given below. Column I Column II A. Pistils fused together (i) Gametogenesis B. Formation of gametes (ii) Pistillate C. Hyphae of higher (iii) Syncarpous ascomycetes D ... , C-(iv), D-(iii) (d) A-(iii), B-(i), C-(iv), D-(ii)
Last Answer : (d) A-(iii), B-(i), C-(iv), D-(ii)
Description : Match the following hormones with their respective disease. (A) Insulin (i) Addison's disease (B) Thyroxin (ii) Diabetes insipidus (C) Corticoids (iii)Acromegaly (D) Growth hormone (iv) Goitre (v) Diabetes mellitus Select the correct option ... (iii) (c) (ii) (iv) (iii) (i) (d) (v) (iv) (i) (iii)
Last Answer : (d) (v) (iv) (i) (iii
Description : Match the following columns and select the correct option. Column-I Column-II (A) Pituitary gland (i) Grave's disease (B) Thyroid gland (ii) Diabetes mellitus (C) Adrenal gland (iii) Diabetes insipidus (D) Pancreas (iv) Addison's disease ... (i) (iv) (c) (iii) (i) (iv) (ii) (d) (ii) (i) (iv) (iii)
Last Answer : (c) (iii) (i) (iv) (ii)
Description : Match the following columns and select the correct option. Column-I Column-II (A) Organ of Corti (i) Connects middle ear and pharynx (B) Cochlea (ii) Coiled part of the labyrinth (C) Eustachian tube (iii) Attached to the oval window (D) Stapes (iv) Located on the basilar membrane
Last Answer : (C) Eustachian tube (iii) Attached to the oval window
Description : Match the following joints with the bones involved: (1) Gliding joint (i) Between carpal and metacarpal of thumb (2) Hinge joint (ii) Between atlas and axis (3) Pivot joint (iii) Between the carpals (4) Saddle joint (iv) Between humerus and ... ), (4)-(i) (d) (1)-(i), (2)-(iii), (3)-(ii), (4)-(iv)
Last Answer : (a) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)
Description : Match the following columns and select the correct option. Column-I Column-II (A) Floating ribs (i) Located between second and seventh ribs (B) Acromion (ii) Head of the humerus (C) Scapula (iii) Clavicle (D) Glenoid cavity (iv) Do ... ) (ii) (iv) (c) (iii) (ii) (iv) (i) (d) (iv) (iii) (i) (ii)
Last Answer : (d) (iv) (iii) (i) (ii)