BHU Post-graduate Entrance Test 2014 · chemistry questions
34 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26OR1113 · Teflon is obtained by polymerization of the monomer : · Addition polymers
ABC26OR1114 · The reagent used in N-terminal analysis of peptides by Sanger's method is : · Peptide sequencing
ABC26OR1120 · In the reaction: Glucose [[O]]HNO3 Q, the product Q is: · Carbohydrate oxidation
ABC26OR1126 · Bakelite is formed by the condensation of : · Condensation polymers
ABC26IN1513 · What is the change in oxidation state of cobalt in the following reaction? [Co(NH3)4Cl2]^+ + H2O → [Co(NH3)4(H2O)Cl]2+ + Cl^- · Oxidation states
ABC26IN1517 · Which one of the following set contains one element each from s-block, p-block and d-block? · Periodic table blocks
ABC26IN1518 · The bond angles in ammonia molecule are.................... · Molecular geometry
ABC26IN1519 · Upon heating to about 500^ CsCl crystal changes its structure to rock salt structure. What happens to the coordination number of Cs? · Crystal structures
ABC26IN1531 · What is the oxidation state of iron in Na2[Fe(CO)4]? · Oxidation states
ABC26GN5844 · An element crystallises in a FCC lattice. How many atoms are there per unit cell? · Crystal lattices
ABC26IN1532 · Which reagent may be used to test for sulphate ions in solution? · Qualitative analysis
ABC26IN1534 · How many moles of water will react with one mole of P4O10 ? · Oxides and hydration
ABC26IN1535 · Which halide of silver is soluble in water ? · Solubility of salts
ABC26IN1536 · Which one, among the given atoms, has the highest number of unpaired electrons in its ground state? · Electronic configuration
ABC26GN5846 · Which of the following isotopes is useful for archaeological dating purposes? · Radiocarbon dating
ABC26IN1538 · Which salt upon heating produces oxygen? · Thermal decomposition
ABC26GN5849 · The dissolved oxygen in water can be estimated by: · Water analysis
ABC26PH1536 · The units of absorbance (A) and molar absorptivity are, respectively : · Absorbance units
ABC26PH1538 · A solution containing n independently absorbing species, the total absorbance is represented in terms of molar absorptivity (epsilon)… · Absorbance of mixtures
ABC26PH1542 · The isocratic elution in chromatography can be defined as · Isocratic elution
ABC26PH1543 · The Van Deemter equation in terms of coefficient of multiple-path effect (A), coefficient of longitudinal diffusion (B), coefficient of… · Chromatography
ABC26GN5850 · In isotope dilution method for the determination of iron; W0 g of iron as 59FeCl3, that has a specific activity A0, was mixed so that 59Fe… · Isotope dilution analysis
ABC26GN5853 · In isotope dilution method for the determination of iron, W0 g of iron as 59FeCl3, that has a specific activity A0, was mixed so that 59Fe… · Isotope dilution analysis
ABC26GN5854 · Two sets of the percentage iron in a sample resulted in the following data (true value = 36.32): X ± Sx = 36.27 ± 0.16 Nx=5 Y ± Sy = 36.34… · Data analysis
ABC26PH1555 · The units of absorbance (A) and molar absorptivity are, respectively : · Spectrophotometry
ABC26IN1546 · An element crystallizes in a FCC lattice. How many atoms are there per unit cell ? · Crystal lattices
ABC26IN1547 · Silver is extracted from the crude metal by leaching with a solution of NaCN in the presence of air. The role of NaCN is to : · Metallurgy and complex formation
ABC26IN1548 · CoCl42- and Co(H2O)62+ have different colours. This is because : · Coordination chemistry and colour
ABC26IN1549 · Dimethylglyoxime reagent is used to test for : · Qualitative analysis
ABC26PH1556 · Which molecule has zero bond order ? · Molecular orbital theory
ABC26OR1144 · Teflon is obtained by polymerization of the monomer : · Addition polymers
ABC26PH1558 · The chemical potential of a component, mu i, in a given mixture is: · Chemical potential